Catholic Theology Of Sexuality

Catholic theology of sexuality, like Catholic theology in general, is drawn from natural law, canonical scripture, divine revelation, and sacred tradition, as interpreted authoritatively by the magisterium of the Catholic Church. Sexual morality evaluates sexual behavior according to standards laid out by Catholic moral theology and often provides general principles by which Catholics can evaluate whether specific actions meet these standards.

The Church teaches that sexual intercourse has a two-fold unitive and procreative purpose; According to the Catechism of the Catholic Church, “conjugal love … aims at a deeply personal unity, a unity that, beyond union in one flesh, leads to forming one heart and soul”, since the marriage bond is to be a sign of the love between God and humanity.

Because Catholics believe God found everything he created to be “very good”, the Catholic Church teaches that the human body and sex must likewise be good. Every person is created in the image of God and therefore has great dignity including their sexuality. Sexuality is not something purely biological; rather, it concerns the intimate nucleus of the person.

In cases in which sexual expression is sought outside marriage, or in which the procreative function of sexual expression within marriage is deliberately frustrated (e.g., the use of artificial contraception), the Catholic Church expresses its concern. Among what are considered sins according to the Catechism to chastity are masturbation, fornication, pornography, and homosexual practices. Additionally, “adultery, divorce, polygamy, and free union are grave offenses against the dignity of marriage”.

In Church history, there have been significant differing opinions on the nature of the severity of various sexual sins. In the present Church likewise there exists still wide opinions by theologians and much of the laity on official Church teaching on sexuality.

Natural law

Natural law (lex naturalis) refers to the use of reason to analyze human nature to deduce binding rules of moral behavior from God’s creation of reality and mankind. “The natural law is written and engraved in the soul of each and every man, because it is human reason ordaining him to do good and forbidding him to sin.” It is called “Natural”, because the reason which decrees it properly belongs to human nature. Its main precepts are found in the Ten Commandments.

In the Summa Theologica, St. Thomas Aquinas wrote: “…the rational creature is subject to Divine providence in the most excellent way, in so far as it partakes of a share of providence, by being provident both for itself and for others. Wherefore it has a share of the Eternal Reason, whereby it has a natural inclination to its proper act and end: and this participation of the eternal law in the rational creature is called the natural law.


The Genesis creation narratives provide insights into anthropology that inform Catholic theology of sexuality. The following verses are frequently cited in Catholic studies of sexual morality:

1:27: “And God created man to his own image: to the image of God he created him: male and female he created them.”

2:21–25: “Then the Lord God cast a deep sleep upon Adam: and when he was fast asleep, he took one of his ribs, and filled up flesh for it. And the Lord God built the rib which he took from Adam into a woman: and brought her to Adam. And Adam said: This now is bone of my bones, and flesh of my flesh; she shall be called woman, because she was taken out of man. Wherefore a man shall leave father and mother, and shall cleave to his wife: and they shall be two in one flesh. And they were both naked: to wit, Adam and his wife: and were not ashamed.”

3:16: “To the woman also he said: I will multiply thy sorrows, and thy conceptions: in sorrow shalt thou bring forth children, and thou shalt be under thy husband’s power, and he shall have dominion over thee.”

Two of the Ten Commandments directly address sexual morality, forbidding adultery and covetousness of the wife of one’s neighbor.

Jesus comments on these commandments in the Gospel of Matthew:

You have heard that it was said to them of old: Thou shalt not commit adultery. But I say to you, that whosoever shall look on a woman to lust after her, hath already committed adultery with her in his heart.

Jesus also makes reference to the passages from Genesis in his teachings on marriage in Matthew:

Have ye not read, that he who made man from the beginning, Made them male and female? And he said: For this cause shall a man leave father and mother, and shall cleave to his wife, and they two shall be in one flesh. Therefore, now they are not two, but one flesh. What therefore God hath joined together, let no man put asunder. They [the Pharisees] say to him: Why then did Moses command to give a bill of divorce, and to put away? He [Jesus] saith to them: Because Moses by reason of the hardness of your heart permitted you to put away your wives: but from the beginning it was not so.

The Old Testament allowed polygamy, concubines, and divorce with remarriage. Many of the patriarchs including Abraham, Issac, Jacob, King David, and King Solomon practiced polygamy and/or concubinage. Although Scripture suggests these practices to be problematic it never forbid these practices.

Noteworthy is the absence of teaching by Christ or any of the New Testament on the question of abortion. Likewise the only reference to abortion in the Old Testament, is against the unwanted ending of a pregnancy. No prohibitions exist against voluntary abortion in the Bible. Though the Didache as early as 100 A.D. does state that abortion is sinful. However, prior to the 19th century abortion was often considered to only apply to late abortions especially after “quickening”, while early abortion was taken as contraception.

In the New Testament Christ and especially Paul praised the greatness of single life for the kingdom. This is the origin of the Roman Catholic practice of celibate priesthood in the Middle Ages and the creation of the religious life as early as St. Anthony of the Desert in the 3rd century.

Patristic theology

Augustine of Hippo, considered a saint and church father by the Catholic Church, having lived a hedonistic lifestyle in his early youth, later followed the strictly dualistic religion of Manicheanism, which was deeply hostile to the material world, despising sexual activity. Eventually, under the influence of his Catholic Christian mother Monica, Augustine converted to Christianity, and later wrote movingly of this conversion in his Confessions, including details of the sexually-related aspects. The following passage from his autobiography describes a critical turning point in his change of sexual morality:

So quickly I returned to the place where Alypius was sitting; for there had I put down the volume of the apostles, when I rose thence. I grasped, opened, and in silence read that paragraph on which my eyes first fell: “Not in rioting and drunkenness, not in chambering and wantonness, not in strife and envying; but put ye on the Lord Jesus Christ, and make not provision for the flesh, to fulfil the lusts thereof.” [Romans 13:13-1 No further would I read, nor did I need…

Medieval theology

Thomas Aquinas dealt with sexual morality as an aspect of the virtue of temperance, and incorporates Scripture throughout his account. In his Summa Theologiae he writes about chastity:

The word “chastity” is employed in two ways. First, properly; and thus it is a special virtue having a special matter, namely the concupiscences relating to venereal pleasures. Secondly, the word “chastity” is employed metaphorically: for just as a mingling of bodies conduces to venereal pleasure which is the proper matter of chastity and of lust its contrary vice, so too the spiritual union of the mind with certain things conduces to a pleasure which is the matter of a spiritual chastity metaphorically speaking, as well as of a spiritual fornication likewise metaphorically so called. For if the human mind delight in the spiritual union with that to which it behooves it to be united, namely God, and refrains from delighting in union with other things against the requirements of the order established by God, this may be called a spiritual chastity, according to 2 Cor. 11:2, “I have espoused you to one husband, that I may present you as a chaste virgin to Christ.” If, on the other hand, the mind be united to any other things whatsoever, against the prescription of the Divine order, it will be called spiritual fornication, according to Jer. 3:1, “But thou hast prostituted thyself to many lovers.” Taking chastity in this sense, it is a general virtue, because every virtue withdraws the human mind from delighting in a union with unlawful things. Nevertheless, the essence of this chastity consists principally in charity and the other theological virtues, whereby the human mind is united to God.

Cross Jesus Community Girl Boy emblem gender


In her Eunuchs for the Kingdom of Heaven, Uta Ranke-Heinemann says that three discussions of marriage in the New Testament (Matthew 19, I Corinthians 7, and Ephesians 5:22-32) do not refer to generating children, which later became consistently emphasized in Catholic moral doctrine as the primary purpose of sexual relations, although, according to her, those texts does not indicate that conceiving children is excluded in marriage. The view that marriage is primarily intended for the purpose of procreation dominated early Christianity, and held by many Church Fathers. During the entire Middle Ages, the question of when intercourse was allowed and when it was not, was very important. Intercourse was prohibited on all Sundays and all the many feast days, as well as the 20 days before Christmas, the 40 days before Easter, and often the 20 days before Pentecost, as well as three or more days before receiving Communion (which at that time was offered only a few times a year). These forbidden days altogether totaled about 40% of each year. Some church leaders warned believers that children conceived on holy days would be born leprous, epileptic, diabolically possessed, or crippled. Penalties of 20 to 40 days of strict fasting on bread and water were imposed on transgressors. Intercourse was forbidden during the menstrual period and after childbirth, since “physicians mistakenly believed that the blood of a menstruating woman or one who has just given birth was poisonous”. It was also forbidden during pregnancy, with concern for protecting the fetus as the main reason. “Christian theologians”, including Pope Gregory I, held that abstinence should continue until a baby was weaned.

Scholastic theologians from the 11th to 13th centuries shifted the time scheme to motives; the desire to procreate with “joy in a new servant of God” was considered the best motive for intercourse. Bertold of Regensburg considered a woman innocent if she was forced to do it on the prohibited times by her husband and she did not will it. Because intercourse was only allowed for procreative reasons, various penitentials (rule books) also forbade intercourse between sterile or older partners, although never assigning a penalty. Heinemann says that oral and anal intercourse were often punished by more years of penance than for premeditated murder, as they prevented conception from occurring. Although practice varied, menstruating women were often forbidden to attend Mass or receive Communion, in which the Latin Church took a more moderate stance than the Eastern Churches. Since the blood from childbirth was believed more harmful than menstrual blood, the Synod of Trier (1227) ruled that women who had just given birth had to be “reconciled with the Church” before they allowed to enter church. They often could not buried in the cemetery if they died in childbirth before had undergone a purifying ritual, a policy which was rejected by several synods. The Council of Trent (1566), and several synods after that, did not impose abstinence from intercourse on certain times as an “obligation”, but as an “admonition”.

Early modern theology

In the Counter-Reformation and early modern periods, theologians continued to write on issues relating to sexual morality and marriage, one example being Giovanni Maria Chiericato (Joannes Clericati) in his Decisiones de Matrimonio. The Church Doctor St. Alphonsus Liguori a preeminent theologian on moral theology didn’t consider late term abortions murder. Pope Pius IX in his 1869 bull, Apostolicae Sedis, instituted a Church policy labeling all abortion as homicide and condemning abortion regardless of the stage of pregnancy since Pope Sixtus V in his 1588 bull. However, some readings of Apostolicae Sedis meant that the excommunication for abortion didn’t extend to the mother.

Magisterium since 1917

  • 1917 Code of Canon Law extended excommunication for abortion to the mother
  • Casti connubii (1930) by Pope Pius XI
    • Casti connubii was written in part as a response to the decision of the Anglican Lambeth Conference in 1930 that taught the legitimacy of the use of contraception in some circumstances.
    • “Any use whatsoever of matrimony exercised in such a way that the act is deliberately frustrated in its natural power to generate life is an offense against the law of God and of nature, and those who indulge in such are branded with the guilt of a grave sin.”
  • Humanae vitae (1968) by Pope Paul VI
  • Persona humana (1975) by the Congregation for the Doctrine of the Faith
  • Theology of the Body by Pope John Paul II
  • Evangelium vitae (1995) by Pope John Paul II
  • Donum Vitae (1987) by the Congregation for the Doctrine of the Faith
  • Veritatis splendor (1993) by Pope John Paul II
  • Catechism of the Catholic Church (1992)
  • Deus caritas est (2005) by Pope Benedict XV
  • Amoris laetitia (2016) by Pope Francis


A study published in 1977, titled Human Sexuality: New Directions in American Catholic Thought, after being commissioned in 1972 by the Catholic Theological Society of America (CTSA), which however did not approve the study, showed that dissent from the Holy See’s teachings on sexuality was common among United States theologians. Reaction to the study showed that the dissent was not unanimous and brought about controversies inside the CTSA itself. In 1979, the Sacred Congregation for the Doctrine of the Faith publicised an advisory that deplored the books’s “erroneous conclusions”, identified “numerous misreadings of the teaching of the Second Vatican Council” in it, and said that the book diminished “the morality of sexual love to a matter of ‘personal sentiments, feelings, [and] customs … .'” George Weigel restates that “these theological errors led to practical guidelines that ‘either dissociate themselves from or directly contradict Catholic teaching’ as taught by the Church’s highest teaching authority.”

A 2014 Guttmacher survey of US abortion patients found that Catholics are as likely as the general population to terminate a pregnancy. A 2019 Pew Research Study found that all Christians denominations at around 70% except White Evangelicals at 35% were against overturning Roe Vs Wade, which in the US legalized Abortion, as the general public.  A total of 98% of Catholic women who are sexually active have used a form of contraception other than Natural Family Planning in the US. 74% of Catholics who regularly attend Mass believe that premarital sex with a committed partner is morally acceptable sometimes.

The Winnipeg Statement is the Canadian Conference of Catholic Bishops’ statement on the papal encyclical Humanae vitae from a plenary assembly held at Saint Boniface in Winnipeg, Manitoba. Published on September 27, 1968, it is the Canadian bishops’ document about rejecting Pope Paul VI’s July 1968 encyclical on human life and the regulation of birth.

Teachings on specific subjects

Virgin Mary

Since the time of the church fathers, the church has believed in the perpetual virginity of Mary. In the Litany of Loreto Mary is called the virgin of virgins and queen of virgins. Mary’s chastity is considered an example for all Christians to follow by the church.



The Catholic Church defines chastity as the virtue that moderates the sexual appetite. It refers to the successful integration of sexuality within the person. Everyone is called to chastity. Unmarried Catholics express chastity through sexual abstinence. Sexual intercourse within marriage is considered chaste when it retains the twofold significance of union and procreation. Pope John Paul II wrote:

At the center of the spirituality of marriage, therefore, there lies chastity not only as a moral virtue (formed by love), but likewise as a virtue connected with the gifts of the Holy Spirit—above all, the gift of respect for what comes from God (donum pietatis). This gift is in the mind of the author of the Ephesians when he exhorts married couples to “defer to one another out of reverence for Christ” (Eph 5:21). So the interior order of married life, which enables the manifestations of affection to develop according to their right proportion and meaning, is a fruit not only of the virtue which the couple practice, but also of the gifts of the Holy Spirit with which they cooperate.


Marriage is a sacrament, and a public commitment between a man and a woman. Marriage builds the family and the society. The Church considers the expression of love between husband and wife to be an elevated form of human activity, joining husband and wife in complete, mutual self-giving, and opening their relationship to new life. As Pope Paul VI wrote in Humanae vitae, “The sexual activity, in which husband and wife are intimately and chastely united with one another, through which human life is transmitted, is, as the recent Council recalled, ‘noble and worthy.’”

Much of the Church’s detailed doctrines derive from the principle that “sexual pleasure is morally disordered when sought for itself, isolated from its procreative and unitive [between spouses] purposes”. At the same time, the Bishops at Vatican II decreed that the essential procreative end of marriage does not make “the other purposes of matrimony of less account.”

Because sex is considered chaste only within context of marriage, it has come to be called the “nuptial act” in Catholic discourse. Among Catholics, the nuptial act is considered to be the conjoining of a man and a woman through sexual intercourse, considered an act of love between two married persons, and is considered in this way, a gift from God. When discussing chastity, the Catechism lists several transgressions and sins against it.

The CCC states that the legal separation of spouses while maintaining the marriage bond can be legitimate in certain cases provided for by canon law.



One of the ten commandments states: “Do not commit adultery”.

The Catechism of the Catholic Church states that two partners commit adultery when they have sexual relations, even transient ones, while at least one of them is married to another party. There, adultery is defined as an injustice because it is an injury of the covenant of the marriage bond, a transgression of the other spouse, an undermining of the institution of marriage and a compromising of the welfare of children who need their parents’ stable union.

Child sex abuse and incest

Incest and child sex abuse are counted as sins in the church’s catechism in paragraphs 2388–2389.


The Church has been opposed to contraception for as far back as one can historically trace. Many early Catholic Church Fathers made statements condemning the use of contraception including John Chrysostom, Jerome, Clement of Alexandria, Hippolytus of Rome, Augustine of Hippo and various others. Among the condemnations is one by Jerome which refers to an apparent oral form of contraception: “Some go so far as to take potions, that they may insure barrenness, and thus murder human beings almost before their conception.” The Catechism specifies that all marriage acts must be both unitive and procreative. In addition to condemning use of artificial birth control as intrinsically evil, non-procreative sex acts such as mutual masturbation and anal sex are ruled out as ways to avoid pregnancy.

Pope Paul VI, rejecting the majority report of the 1963–66 Pontifical Commission on Birth Control, confirmed the Catholic Church’s traditional teaching on contraception, defined as “every action which, whether in anticipation of the conjugal act, or in its accomplishment, or in the development of its natural consequences, proposes, whether as an end or as a means, to render procreation impossible”, declaring it evil, and excluded. Prohibited acts with contraceptive effect include sterilization, condoms and other barrier methods, spermicides, coitus interruptus (withdrawal method), the Pill, and all other such methods. Restricting sexual activity to times when conception is unlikely (natural family planning and similar practices) is not deemed sinful. The Catechism of the Catholic Church says that the spacing of births may be practiced for “just reasons” and not “motivated by selfishness”.

John Paul II said in Familiaris consortio,

Thus the innate language that expresses the total reciprocal self-giving of husband and wife is overlaid, through contraception, by an objectively contradictory language, namely, that of not giving oneself totally to the other. This leads not only to a positive refusal to be open to life but also to a falsification of the inner truth of conjugal love, which is called upon to give itself in personal totality…. the difference, both anthropological and moral, between contraception and recourse to the rhythm of the cycle . . . involves in the final analysis two irreconcilable concepts of the human person and of human sexuality.

In January 2015, during his return flight from a visit to the Philippines, Pope Francis was asked by a German journalist for his thoughts on the findings of some polls that most Filipinos think the population growth in the country, with each woman having on average three children, is one of the chief reasons for its poverty, and that many there disagree with Catholic teaching on contraception. He replied that the key is “responsible parenthood”:

Some people think that—excuse my expression here—that in order to be good Catholics we have to be like rabbits. No. Responsible parenthood. This is clear and that is why in the Church there are marriage groups, there are experts in this matter, there are pastors, one can search; and I know so many ways that are licit and that have helped this.

He also said that Pope Paul VI’s teaching was prophetic, in view of the drop of the birth rate in some countries to little more than one child per woman.

Medical use

Further information: Roman Catholic Church and AIDS

The Church does not consider at all illicit the use of those therapeutic means necessary to cure bodily diseases, even if a foreseeable impediment to procreation should result therefrom, so long as the contraceptive effect is not directly intended for any motive whatsoever. For example, the use of female steroid hormones as treatment for endometriosis rather than with contraceptive intent is not considered to conflict in any way with Catholic teaching. Moral theologians call this the principle of double effect.

The use of condoms to prevent disease is a more controversial and more complex issue, with theologians arguing both sides. Unlike drugs and surgical procedures, the Church’s position as of 2013 was that using condoms during sex, for any purpose, is morally contraceptive and thus a sin.

Issues surrounding the Catholic Church and AIDS became highly controversial since 1990, primarily because many prominent Catholic leaders publicly declared their opposition to the use of condoms as a disease preventative. Other issues involve religious participation in global health care services and collaboration with secular organizations such as UNAIDS and the World Health Organization.

In November 2010 Pope Benedict said that it was a responsible act, though still not a truly moral solution, to use condoms in some very special cases as a device for the prevention of disease. He gave male prostitutes as an example, where the purpose is to “reduce the risk of infection” from HIV. While still believing that contraceptive devices interfere with the creation of life, the Pope stated that in that particular case, it can be a responsible act to raise awareness of the nature of such an act, and as a benefit, to avoid death and save life, though only as a first step, not a truly moral solution, before convincing the male prostitute of a truly moral solution, which means ceasing prostitution and sexual activity outside of marriage. There was some confusion at first whether the statement applied only to homosexual prostitutes and thus not to heterosexual intercourse at all. However, Federico Lombardi, spokesman of the Vatican, clarified that it applied to heterosexual and transsexual prostitutes, both male and female, as well. He also clarified that, in the interview, the Pope did not reverse the Church’s centuries-old prohibition on contraceptive use in the context of heterosexual sexual acts, which the Church states must always be open to the transmission of life, and that he did not reverse his positions on homosexual acts and prostitution either.


Further information: Catholic Church and abortion

In Christianity, and in the Catholic Church in particular, opinion was divided on how serious abortion was in comparison with such acts as contraception, oral sex, and sex in marriage for pleasure rather than procreation; and the Catholic Church did not begin vigorously opposing abortion until the 19th century. However, as early as ~100 A.D. the Didache taught that abortion was sinful.  Several historians have written that prior to the 19th century most Catholic authors did not regard termination of pregnancy before “quickening” or “ensoulment” as an abortion. Among these authors were the Doctors of the Church: St. Augustine, St. Thomas Aquinas, and St. Alphonsus Liguori. Pope Sixtus V (1585–90) was the only Pope before Pope Pius IX (in his 1869 bull, Apostolicae Sedis) to institute a Church policy labeling all abortion as homicide and condemning abortion regardless of the stage of pregnancy. In fact, Sixtus’ pronouncement of 1588 was reversed three years later by Pope Gregory XIV. In the recodification of Canon Law in 1917, Apostolicae Sedis was strengthened, in part to remove a possible reading that excluded excommunication of the mother. Statements made in 1992 in the Catechism of the Catholic Church promulgated by Pope John Paul II, the codified summary of the current Church’s teachings, considered abortion from the moment of conception as homicide and called for the end of legal abortion.


The Catholic Church disapproves of fornication (sexual intercourse between two people not married to each other), calling it “gravely contrary to the dignity of persons and of human sexuality”.


Main article: Catholic Church and homosexuality

The Catechism devotes a separate section to homosexuality within its explanation of the sixth commandment. The Church distinguishes between “homosexual attractions”, which are not considered sinful, and “homosexual acts”, which are considered sinful. Like all heterosexual acts outside of marriage, homosexual acts are considered sins against this commandment. The Catechism states that they “violate natural law, cannot bring forth life, and do not proceed from a genuine affective and sexual complementarity. Under no circumstances can they be approved.” The Church teaches that a homosexual inclination is “objectively disordered” and can be a great trial for the person for whom the Church teaches must be “accepted with respect, compassion and sensitivity … unjust discrimination in their regard should be avoided.”

The homosexual person is, according to the Church, “called to chastity”. They are instructed to practice the virtues of “self-mastery” that teaches “inner freedom” using the support of friends, prayer and grace found in the sacraments of the Church. These tools are meant to help the homosexually inclined person to “gradually and resolutely approach Christian perfection”, which is a state to which all Christians are called.

On 26 August 2018, Pope Francis said in Ireland that homosexual people have existed throughout the entire history of humankind. He teaches Catholic parents to talk with their homosexual children and that they are part of their families and should not be “thrown out” of the family. On 27 August 2018 a press statement by Pope Francis declared that homosexuality is not an illness.


The Catholic Church disapproves of lust: “Sexual pleasure is morally disordered when sought for itself, isolated from its procreative and unitive purposes”.

But I say to you, everyone who looks at a woman with lust has already committed adultery with her in his heart.[Matthew 5:28]


The Catholic Church disapproves of masturbation. Thomas Aquinas, one of the most prominent Doctors of the Catholic Church, wrote that masturbation was an “unnatural vice” which is a species of lust”, but that it is a less serious form than bestiality, which is “the most serious”, and than sodomy, which is the next most serious: “By procuring pollution [i.e., ejaculation apart from intercourse], without any copulation, for the sake of venereal pleasure … pertains to the sin of ‘uncleanness’ which some call ‘effeminacy’ [Latin: mollitiem, lit. ‘softness, unmanliness’].”

More recently, from the Youcat:

409 Masturbation is an offense against love, because it makes the excitement of sexual pleasure an end in itself and uncouples it from the holistic unfolding of love between a man and a woman. That is why “sex with yourself” is a contradiction in terms. The Church does not demonize masturbation, but she warns against trivializing it. In fact many young people and adults are in danger of becoming isolated in their consumption of lewd pictures, films, and Internet services instead of finding love in a personal relationship. Loneliness can lead to a blind alley in which masturbation becomes an addiction. Living by the motto “For sex I do not need anyone; I will have it myself, however and whenever I need it” makes nobody happy.

According to Catholic Church teaching, “to form an equitable judgment about the subjects’ moral responsibility and to guide pastoral action, one must take into account the affective immaturity, force of acquired habit, conditions of anxiety, or other psychological or social factors that lessen or even extenuate moral culpability.”


The Catholic Church disapproves of pornography and says that civil authorities should prevent the production and distribution of pornographic materials.


The Catholic Church condemns prostitution as a societal vice. St. Thomas Aquinas agreed with St. Augustine in condemning prostitution as sinful however defended the legal protection of prostitution by even Catholic monarchies least it cause society to collapse.


The Catholic Church condemns rape as “always an intrinsically evil act.” The current magisterium allows the use of Plan B by rape victims to prevent pregnancy.

Adapted from Wikipedia, the free encyclopedia

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