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Cervical cap and diaphragm • The cervical cap and diaphragm are two types of barrier contraception, which prevent the sperm entering the cervix. Both devices are reliable forms of contraception when used with a spermicide. • The initial fitting is carried out by a trained family planning nurse, who will also give instruction on how to use the device. • Correct insertion is important. The cap should lie directly over the cervical opening, and the diaphragm across the top of the vagina and over the cervical opening. • Women using the cervical cap must examine themselves before insertion to establish the position of the cervix. It is important to be aware that cervical position may alter at certain times of the month and throughout life. • Both the cervical cap and the diaphragm should be left in position for 6 hours after intercourse to ensure that sperm that remain in the vagina do not enter the uterine cavity. • The cervical cap and diaphragm must be refitted
after pregnancy, and after a significant change in weight,
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