Diaphragms are a type of contraceptive device that is inserted into the vagina to cover the cervix and prevent sperm from reaching the egg. They are typically made of silicone or latex and come in various sizes to fit different women's bodies. Diaphragms are used in combination with spermicide to increase their effectiveness in preventing pregnancy. They are a non-hormonal form of birth control and are generally safe and well-tolerated. Diaphragms have been used as a method of contraception for many years and are a popular choice for women who prefer non-hormonal options.