The disc prevents the sperm from entering the uterus and the spermicide inside it renders sperms inactive. The Diaphragm has been reportedly known to have an average effectiveness in about 85 per cent cases. It is known to offer protection against pelvic inflammatory disease and sexually transmitted diseases. It is also known to reduce the risk of cervical cancer especially in high-risk women. It is no longer used widely and few women opt for it, given the choices.
Insertion can be difficult the first time.
Some users also complain of urinary tract infections. In fact the instructions, that come along with it, also report Toxic Shock Syndrome as one of the side effects. This can be very serious. Make sure your doctor takes your specification before inserting it. If you gain weight after marriage, you will need to insert another diaphragm.