Injectable Contraceptives Linked to Breast Cancer Risk in Younger Women

http://www.sciencedaily.com/releases/2012/04/120404144120.htm

ScienceDaily (Apr. 4, 2012) — The first large-scale U.S.-based study to evaluate the link between an injectable form of progestin-only birth control and breast cancer risk in young women has found that recent use of a year or more doubles the risk. The results of the study, led by breast cancer epidemiologist Christopher I. Li, M.D., Ph.D., of Fred Hutchinson Cancer Research Center, are published online ahead of the April 15 print issue of Cancer Research.

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