The intersection of Scientology and abortion has a controversial history which began with Scientology founder L. Ron Hubbard's discussion of abortion in his 1950 book Dianetics: The Modern Science of Mental Health. Hubbard wrote in Dianetics that abortion and attempts at abortion could cause trauma to the fetus and to the mother in both spiritual and physical ways. Scientologists came to believe that attempted abortions could cause traumatic experiences felt by the fetus, which would later be remembered as memories referred to in Scientology as "engrams". In the Scientology technique called Auditing, Scientologists are frequently queried regarding their sexual feelings and behaviors. These questions about Scientologists' sexual behavior are often posed to members during "security checks", a specific form of auditing sessions where individuals are required to document their divergence from the organization's ethics. One of the questions asked in these security checks is, "Have you ever been involved in an abortion?".

A female former member of Scientology's elite organization called the Sea Org discussed the views of Scientology concerning abortion with sociologist Stephen A. Kent. She told Kent that while the Sea Org operated at sea during the mid-1970s, women understood that they were not to have children. She stated to Kent that women on the ships were pressured into having abortions. In 1994, former Scientologist and Sea Org member Mary Tabayoyon filed a legal declaration in which she said that while at Scientology's base in Hemet, California, members of the Sea Org were instructed not to have children, and were coerced to have abortions. In 1999, former Scientologist Jesse Prince told The Press-Enterprise that after his wife Monika became pregnant while both were working at the Scientology complex Golden Era Productions in Gilman Hot Springs, California, she was ordered to have an abortion in order for the couple to remain in the Sea Org. Scientology representatives at the time asserted that Prince's wife chose of her own volition to have an abortion, and was not forced to do so.

In 2001, former Scientologist Astra Woodcraft told the San Francisco Chronicle that if a woman gets pregnant while in the Sea Org, she will either be sent to a lower-level organization of Scientology, or be pressured to have an abortion. In April 2008, Woodcraft appeared along with Scientology leader David Miscavige's niece Jenna Miscavige Hill on the ABC News program Nightline, and both asserted that Sea Org members who become pregnant are told to either leave or get an abortion. Claire Headley was an employee at Scientology's facility Golden Era Productions from 1991 to 2005 and a Scientologist and Sea Org member. In 2009, she filed a lawsuit against Golden Era Productions in which she asserted she was forced to undergo two abortions in order to keep her position with her employer. Scientology representative Tommy Davis described her lawsuit as "utterly meritless", and said that Scientologists who sign up for the Sea Org know that they are "becoming a part of a highly dedicated, highly disciplined, very regulated lifestyle as part of a religious order". Laura DeCrescenzo filed a lawsuit in 2009 against Scientology, in which she asserted that she was forced to have an abortion at age 17.

In commentary on Scientology and practices in the Sea Org, new religious movements scholar J. Gordon Melton told the San Francisco Chronicle that members of the Sea Org are discouraged from having children. Melton wrote in a contribution in the book New Religious Movements and Religious Liberty in America that he had yet to see documents confirming whether Scientology had a policy demanding that pregnant members of the Sea Org get an abortion. In an article for the Marburg Journal of Religion, Stephen A. Kent wrote that "researchers should not be surprised to learn of pressures that Sea Org women felt to either abort pregnancies or give-up children for adoption". Kent commented, "Sea Org obligations override many personal and family obligations and responsibilities, and devotion to the Scientology cause often appears to take priority over the needs of children."

L. Ron Hubbard's views

Scientology founder L. Ron Hubbard wrote in Dianetics: The Modern Science of Mental Health that abortion and attempts at abortion could cause trauma to the fetus and to the mother in both spiritual and physical ways. The St. Petersburg Times reported on how Hubbard's views from Dianetics affect Scientology practitioners, "Abortion is therefore rare among Scientologists, recognizing that even the fetus may have already been occupied by a spiritual being. In some instances, abortion might be chosen of health concerns of the mother or other personal factors." Hubbard asserted, "It is a scientific fact that abortion attempts are the most important factor in aberration", and stated "Attempted abortion is very common. ... Twenty or thirty abortion attempts are not uncommon in the aberree." He believed that attempted abortions led to ulcers.

Hubbard wrote in Dianetics, "The child on whom the abortion is attempted is condemned to live with murderers whom he reactively knows to be murderers through all this weak and helpless youth!". He asserted:

In a 1950 article in Look magazine, Albert Q. Maisel wrote, "Unlike many religious groups, the proponents of dianetics have nothing against birth control. But the greatest of all crimes and the root of most evils, as they see it, is the attempt—or even just the verbal wish—to cause the abortion of a child already conceived. They object here, not so much on moral grounds, as because such attempts—or such wishes and thoughts—load down the time track with the basic-basic demon engram.

In his 1951 book Science of Survival, Hubbard wrote that a mother who reached a status of 1.1 ("Covert hostility") on the "tone scale" listed in the book would "attempt the abortion of her child", and that any woman who attempted an abortion would occupy this level or below. Such a woman, he wrote, "can be expected to be unreliable, inconstant and promiscuous; and the child is looked upon as evidence of this promiscuity."

According to The World's Religions: The Study of Religion, Traditional and New Religion, "early Dianetics enthusiasts believed that attempted abortion of the fetus by its mother caused "traumatic experiences in intra-uterine life". Stephen J. Hunt noted in Alternative Religions that Scientologists believe certain events in one's life may trigger a memory referred to in Scientology as an "engram". Hunt wrote, "The engram may be triggered by association of events and objects. Although the conscious mind will eventually forget an incident, the reactive mind stores every detail. According to Hubbard, some of the most powerful engrams are constructed while still in the womb. The unborn child hears the angry words of parents caught up in marital disputes or perhaps talk of abortion.

Scientology practice

Auditing In the Scientology technique called Auditing, Scientologists are frequently queried regarding their sexual feelings and behaviors. These questions about Scientologists' sexual behavior are often posed to members during "security checks", a specific form of auditing sessions where individuals are required to document their divergence from the organization's ethics. Scientologists on the spiritual pathway known as "The Bridge to Total Freedom" are given security checks, and those of the level called Operating Thetan receive these checks once every six months. Scientology officials explained that the security checks are given "to make sure they're using the tech correctly". Among the sexual questions asked in the Scientology security checks include, "Have you ever practiced sex with animals?", "Have you ever practiced sodomy?", "Have you ever slept with a member of a race of another color?", and "Have you ever been involved in an abortion?".

Sea Org In a 1987 interview with sociologist Stephen A. Kent, a former member of Scientology's elite organization called the Sea Org discussed the views of Scientology with regard to abortion in the 1970s. During the mid-1970s, the Sea Org operated on vessels at sea. Women understood that it was not permitted to raise children on board the ships. According to woman interviewed by Kent, these women on board the Sea Org ships were pressured to undergo abortions. "On the ship, I know of a lot of people that had abortions, because they didn't want to leave the ship. It wasn't like anybody said 'You have got to get an abortion.' It was more an implied thing. If you don't you're going to leave," said the woman to Kent.

Mary Tabayoyon joined Scientology in 1967 and became a member of the Sea Org in 1971, later leaving Scientology in 1992. Tabayoyon filed a legal declaration on August 26, 1994 in the case Church of Scientology International vs. Steven Fishman and Uwe Geertz, describing Scientology's practices on having children in the Sea Org. She said that while at Scientology's base in Hemet, California, "members of the Sea Org were forbidden to have any more children if they were to stay on post[,] and the Hubbard technology was applied to coercively persuade us to have abortions so that we could remain on post". According to Tabayoyon this pressure was exerted during a Scientology procedure known as "ethics handling", where individuals were instructed to go along with L. Ron Hubbard's policies as well as those of Scientology. Tabayoyon said "[I] gave up my child due to my greatly misguided obligation and dedication to the Sea Org". She stated she made the decision to give up her child because she was "indoctrinated to believe that I should never put my own personal desires ahead of the accomplishment of the purpose of the Sea Org".

In 1999, former Scientologist Jesse Prince told The Press-Enterprise that after his wife Monika became pregnant while both were working at the Scientology complex Golden Era Productions in Gilman Hot Springs, California, she was ordered to have an abortion in order for the couple to remain in the Sea Org. "The order devastated both my wife and me. Our dedication as Sea Org members clashed violently with our intentions as parents and we went through a personal nightmare," said Prince in an affidavit filed in a legal case in Colorado. Scientology representatives at the time asserted that Prince's wife chose of her own volition to have an abortion, and was not forced to do so. Prince said that his wife was never the same after her abortion, and decided she wanted to leave Scientology. The couple left Scientology in 1992. Golden Era Productions general manager Ken Hoden told The Press-Enterprise that per Scientology policy, employees are not allowed to work at the Gilman Hot Springs facility if they have children under six years of age because the difficult work schedule would not permit the parents to spend sufficient time with their children. "We don't think it's right for parents to spend time away from their kids. Every person that says they have been coerced are saying it for another reason. Nobody is coerced into doing anything in the Church of Scientology. The purpose of Scientology is to increase a person's self-determinism," said Hoden. The director of public affairs for the Church of Scientology International, Aron Mason, said Prince's statements were motivated by financial reasons, and stated to The Press-Enterprise, "He is only existing because he gets paid to say the party line for people who are anti-Scientologists."