A Topic of Moral Theology
Onanism
Its gravity from Scripture and reason.
The works themselves ask 73 questions under this heading — see them together with their answers.
Within this topic
See also Mutilation — in Suicide and the Preservation of Life · Abortion — in Killing the Innocent · The marriage debt: what is owed and what is lawful — in The Marriage Debt · Use of the Infertile Periods — in Morality in Marriage
Also asked about as…
birth control · birth control pills · coitus interruptus · condoms · conjugal onanism · contraception · contraceptive devices · contraceptive pill · contraceptives · diaphragm · iud · preventing pregnancy · pulling out · spermicide · the pill · withdrawal method (ed.)
In the index as Onanism · Conjugal Debt (Debitum conjugale) · Conjugal onanism · Marriage · Mutual imperfect venereal acts of spouses · Onanistic wife · Wife · Confessor · Copulation · Lust · Man · Frustration of Conception · The wife's cooperation in onanism or shameful acts · Adulteries · Cooperation (Cooperatio) · Good or bad faith · Interruption · Pollution · Abstinence from the use of marriage · Attempt at matrimony by a spouse with another · Days on which there is less hope of fertilization · Fecundation · Intention of avoiding offspring · Intercourse
In the manuals
Read the manuals side by side → — each work's whole treatment in its own column
A Manual of Moral Theology for English-Speaking Countries
Vol. II, Bk. IX, Chapter XIV. De Debito Conjugali, n. 3 — A husband who, in incomplete intercourse, voluntarily withdraws from his wife and sheds the seed outside the vessel commits a grave sin against nature and against the end of marriage. From the deed of Onan the sin is cal… Read in context →
Manual of Moral Theology (Manuale Theologiae Moralis)
Vol. II, Bk. III, Tr. V, Diss. II, Pt. II, Sect. II, Ch. III, Scholion. On the Confession of Those Given to Pollution or Onanism, n. ¶1 — Cf. our little work: De virtute castitatis et vitiis oppositis, nn. 138 sq., 114 sq.Read in context →
Vol. III, Bk. II, Part II. On the Illicit Acts of Spouses, nn. 104–118 (15 passages)
Cases of Conscience, Proposed by Cardinal de Lugo, by Fr. Beniamino Elbel, by Fr. Ioannes Petrus Gury and by Other Authors, and Resolved (Casus conscientiae)
64. On the Use of Marriage, nn. 1, 2, 3, 4, 5 & 6 (36 passages — hover a number to read it)
Commentaries on the Nature of Moral Theology, on Conscience and Probabilism, on the Fourth Precept, and on the Sixth and Ninth Precepts of the Decalogue (Commentarii)
Ch. III, Article IV: On the Placing of an Impediment to Generation, nn. 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133 & 134 (33 passages — hover a number to read it)
Ch. III, Article V: On the Begun and Non-Consummated Copulation of Spouses, nn. 135 & 136 (9 passages — hover a number to read it)
Institutions of Moral Theology (Institutiones Theologiae Moralis)
Vol. IV, On Marriage, V. On the Use of Marriage, n. 1066 — "Is it lawful for a wife to render the debt or ask it from her husband who wishes to seminate outside the vessel after copulation has begun? The first opinion affirms..., because when the woman renders or asks, she gives… Read in context →
Vol. IV, Appendix, Decisions of the Sacred Congregations Concerning Onanism, nn. ¶1, ¶2 & ¶3 (3 passages — hover a number to read it)
Compendium of Moral Theology of Fr. John Peter Gury, S.J., with the Notes of Antonio Ballerini, S.J.
Vol. II, Treatise on Matrimony, Ch. VIII, Art. III, § II. On Onanism in Particular, nn. 921, 922, 923, 924, 925, 926, 927, 928, 929, 930 & 931 (39 passages — hover a number to read it)
Synopsis of Moral and Pastoral Theology
Vol. I, Matrimony, and Holy Orders, On Marriage (Volume I), Supplement to the Treatise on Marriage, nn. 39–54 (16 passages)
On Chastity and on the Contrary Vices: A Doctrinal and Moral Treatise
Chapter II. On the Incomplete Use of Marriage, n. ¶1396 — What is the incomplete use of marriage?. We call every use of marriage other than perfect intercourse incomplete, that is, intercourse so performed that, on the part of the spouses, nothing is lacking for generation.Read in context →
Ch. II, Article I. On Onanistic Intercourse and Similar Violations of Nature, nn. 257, ¶1397, 258, ¶1398–¶1413, 259, ¶1414, ¶1415, 260, ¶1416, ¶1417, ¶1418, ¶1419, ¶1420, ¶1421, ¶1422, ¶1423, ¶1424, 261, ¶1425, ¶1426, ¶1427, ¶1428, ¶1429, ¶1430, ¶1431, ¶1432, ¶1433, ¶1434, 262, ¶1435, ¶1436, ¶1437, ¶1438, ¶1439, 263, ¶1440, ¶1441, ¶1442, ¶1443, ¶1444, ¶1445, ¶1446, ¶1447, ¶1448, 264, ¶1449, ¶1450, ¶1451, ¶1452, ¶1453, ¶1454, ¶1455, 265, 266, ¶1456, ¶1457, ¶1458, ¶1459, 267, ¶1460, ¶1461, ¶1462, ¶1463, 268, ¶1464, 269, ¶1465, 270 & ¶1466–¶1482 (100 passages — hover a number to read it)
Theologia Moralis: Principles — Responses — Counsels
Vol. III, Tomus IV: On Chastity and …, Tr. III, Ch. IV, Article III: On the Lust of Spouses, nn. ¶1, 69, 70, 71, 72, 73, 74, 75, 76 & 77 (10 passages — hover a number to read it)
Pastoral Questions
Article IV: Concerning Unnatural Concubitus with a Woman, nn. ¶334, ¶335, ¶336, ¶337, ¶338, ¶339, ¶340, ¶341, ¶342 & ¶343 (10 passages — hover a number to read it)
Article IV: Concerning Excess in the Use of Marriage, nn. ¶615–¶659 (45 passages)
Institutiones Morales Alphonsianae
Vol. I, Pt. II, Sect. II, Tr. VI, Ch. II, Art. II, § 2. On Onanism, n. ¶801 — 801. Notion. Onanism (or the sin of Onan) is copulation so performed that from the semen poured out generation cannot follow. This crime perpetrated among unmarried persons is a double sin, namely fornication begun and e… Read in context →
Theologia Moralis Sancti Alphonsi: Reduced into a Compendium
Vol. I, TREATISE ON THE PRECEPTS O…, Ch. III, Art. II, § II. On onanism, n. ¶504 — 504. - Onanism is copula begun with effusion of semen outside the vessel. This crime committed among the unmarried is a twofold sin, namely fornication begun or affective, and pollution in effect. - Note that the special… Read in context →
Vol. II, Treatise on Matrimony, Ch. VIII, Art. III, § II. On Onanism in Particular, nn. ¶1652, ¶1653, ¶1654, ¶1655, ¶1, ¶1656, ¶1657, ¶1658, ¶1659, ¶2 & ¶3 (11 passages — hover a number to read it)
Manuale Theologiae Moralis
Vol. III, Pt. II, Tr. X, Ch. V, Art. III, § 1. On The Notion And Malice Of Conjugal Onanism, nn. 699 & 700 (2 passages — hover a number to read it)
Vol. III, Pt. II, Tr. X, Ch. V, Art. III, § 2. On Cooperation In Conjugal Onanism, nn. 701 & 702 (2 passages — hover a number to read it)
Vol. III, Pt. II, Tr. X, Ch. V, Art. III, § 3. On The Means Of Guarding Against Conjugal Onanism, n. 703 — 703. The only truly efficacious means against onanism are either virtuous continence or firm confidence in God. Certainly it happens that the generation of offspring is morally almost impossible for spouses, for example,… Read in context →
Vol. III, Pt. II, Tr. X, Ch. V, Art. III, § 4. How The Confessor Ought To Act With Spouses Practicing Onanism Or Otherwise Sinning Against Chastity, n. 704 — 704. Conjugal onanism has become so widespread in our times and can be eradicated with such difficulty that it has become both a true cross for confessors and an imminent danger to the common good of the republic. On Mar… Read in context →
Summa Theologiae Moralis
Vol. III, Special Moral Theology: On…, Treatise: On Matrimony, Fourth Part: On the Obliga…, Question One: On the Conju…, Article IV: On Excess in the Use of Marriage, nn. ¶1, 954, 955, 956, 957 & 958 (84 passages — hover a number to read it)
Compendium of Moral Theology
Vol. II, Tr. XVIII, Ch. X, Art. III, § II. On Onanism in Particular, nn. ¶1, 939, 940, 941 & 941, Q. 2 (5 passages — hover a number to read it)
New Questions, Old Answers: Catholic Morals and Natural Family Planning
Clark, New Questions, Old Answers, Chapter One: The Marital D…, Natural Family Planning and Sexual Vice, nn. 1–14 (14 passages)
Cases of Conscience for English-Speaking Countries, Volume II
Slater, Cases II, Matrimony, Case 37. A Troubled Wife, nn. ¶1, ¶2, ¶3, ¶4, ¶5, ¶6, ¶7, ¶8, ¶9, ¶10, ¶11 & ¶12 (12 passages — hover a number to read it)
The Casuist: A Collection of Cases in Moral and Pastoral Theology
Vol. I, Case LXXI: Prevention of Offspring, nn. ¶1–¶14 (14 passages)
The Decretum of Gratian (Concordia discordantium canonum)
Pt. II, Causa XXXII, Question II, cc. ¶ & 1–16 (17 passages — hover a number to read it)
Cases of Conscience for English-Speaking Countries, Volume I
Slater, Cases I, The Fifth Commandment, Case 1. Unlawful Precautions, nn. ¶1, ¶2, ¶3, ¶4, ¶5, ¶6, ¶7 & ¶8 (8 passages — hover a number to read it)
Moral Theology: A Complete Course (McHugh & Callan)
Vol. II, Pt. II, Q. III, Art. 2. Duties of Members …, Contraception and Onanism, n. 2620 — Contraception. Contraception.—Contraception in all its forms (onanism, condonism, vaginal irrigation, spermatocide) is a grave crime. (a) It is an Injury to God.—Marriage was instituted by God to propagate the human race (Gen., i. 27, … Read in context →
Vol. II, Pt. II, Q. III, Art. 2. Duties of Members …, Birth-control, nn. 2621 & 2622 (2 passages — hover a number to read it)
What Is Marriage? A Catechism Arranged According to the Encyclical “Casti Connubii” of Pope Pius XI
Vermeersch, What Is Marriage?, Part Two: The Attack on Ma…, The Campaign Against the Child, nn. 87–103 (17 passages)
On the Morals of To-Day
Chapter I: The Morality of Anti-conceptive Devices, nn. ¶17–¶41 (25 passages)
Back to Morality
Chapter XVIII: Frustrating Nature, nn. ¶369, ¶370, ¶371, ¶372, ¶373 & ¶374 (6 passages — hover a number to read it)
Summa of Moral Theology (Summa Theologiae Moralis)
Noldin, Summa of Moral Theology, On the Sixth Precept and t…, Book Two. On the Use of Ma…, Question One. On the Licei…, Article Two. On Sodomy and Onanism., nn. ¶1, 71, 72, 73, 74, 75, 76 & 77 (8 passages — hover a number to read it)
Treated under the broader heading The Marriage Debt — Concina, Compendium · The Roman Catechism — these works do not divide the matter as finely as we do here, so their treatment stands one heading up (ed.)