Before sex, the diaphragm is inserted into the vagina with spermicide. The diaphragm covers the cervix and is held in place by the vaginal walls.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press.
Make a gift to our 2025 Drive to Cure Cancer and transform the way cancer is treated and defeated.