Information for the Adolescent Woman and Her Parents: Abortion and the Risk of Breast Cancer.

Studies from many nations suggest that induced abortion (IA) may be a causal risk factor for the development of breast cancer. Researchers agree that IA contributes to the increased risk of breast cancer by delaying the timing of a full-term pregnancy which is a protective factor. Increasing numbers of studies now show that IA prior to 32 weeks in and of itself is a risk factor for breast cancer due to the physiology of breast development and the manner in which abortion interferes with the maturation of the breast cells. Although largely ignored by the mainstream medical community, this risk information deserves a prominent place in the education of all adolescent women who may, in the future, consider an IA.