Diaphragm (contraceptive)

The diaphragm is a barrier style contraceptive that is placed in the vagina over the cervix before intercourse and is treated with a spermicide. It is then left in the vagina for at least six hours. It is roughly dome shaped and can be made from silicone, rubber or latex. It is moderately effective with a failure rate of about 12% in regular use. In most cases, it is incorrect use or incorrect fitting that results in pregnancy, not a physical failure. However, it has fewer side effects than most contraceptive methods, generally limited to vaginosis and urinary tract infection. It is also far less expensive than most other methods. Unlike a condom, it can be reused if properly cleaned. A latex diaphragm will last at least a year, and a silicone diaphragm can last up to ten years. 
Diaphragm (contraceptive) at Wikipedia
Category:Contraceptives