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Definition

By Mayo Clinic staff

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Photo of a diaphragm Diaphragm

The diaphragm is a birth control (contraceptive) device that prevents sperm from entering the uterus. The diaphragm is a small, reusable rubber or silicone cup with a flexible rim that covers the cervix. Before sex, the diaphragm is inserted deep into the vagina so part of the rim fits snugly behind the pubic bone. The diaphragm is effective at preventing pregnancy only when used with spermicide.

Why it's done
References
  1. Barbieri RL. How to fit and use a diaphragm for contraception. http://www.uptodate.com/home/index.html. Accessed Nov. 16, 2011.
  2. Choosing a method of birth control. The Association of Reproductive Health Professionals. http://www.arhp.org/Publications-and-Resources/Quick-Reference-Guide-for-Clinicians/choosing/Cervical-Cap. Accessed Nov. 14, 2011.
  3. Birth control methods fact sheet. U.S. Department of Health and Human Services. http://www.womenshealth.gov/publications/our-publications/fact-sheet/birth-control-methods.cfm. Accessed Nov. 16, 2011.
  4. Barrier methods of contraception. American College of Obstetricians and Gynecologists. http://www.acog.org/publications/faq/faq022.cfm. Accessed Nov. 16, 2011.
  5. Diaphragm fact sheet. Office of Population Affairs. http://www.hhs.gov/opa/reproductive-health/contraception/diaphragm/. Accessed Nov. 16, 2011.
  6. Cates W, et al. Vaginal barriers and spermicides. In: Hatcher RA, et al. Contraceptive Technology. 20th ed. New York, N.Y.: Ardent Media, Inc.; 2011:391.
  7. Ortho all-flex diaphragm fitting set. Titusville, N.J.: Ortho-McNeil-Janssen Pharmaceutical Inc.; 2008. http://www.janssenpharmaceuticalsinc.com/our-products/product-list. Accessed Nov. 17, 2011.
  8. Female-controlled barrier methods. In: Zieman M, et al. A Pocket Guide to Managing Contraception. Tiger, Ga.: Bridging the Gap Communications; 2010:63.
MY00987 Jan. 21, 2012

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