阴道隔膜与杀精子凝胶剂
阴道隔膜是一种柔韧、碗状和由橡胶制成的小装置；它被放置于靠近子宫颈，起机械性阻塞精子作用，以防止其进入子宫。为了增加其避孕效果，阴道隔膜要与杀精子膏或凝胶剂一起使用，一般杀精子膏涂在阴道隔膜的轮缘。因为不同的妇女个头各异，成品的阴道隔膜型号大小也各异，必须由医生给使用者量度子宫颈尺寸，以确定使用的型号(使用者应该每两年和每次怀孕后再检测一次)。医生也会传授如何合适地将隔膜插入阴道。
性交之前6小时就得将阴道隔膜插入阴道，性交之后至少8小时就必须取出；如果在8小时之内还想性交，必须在阴道内涂入更多的杀精子膏或凝胶剂(当然，勿需取出阴道隔膜)。隔膜取出后，用肥皂和清水清洗，存放待用。
避孕效果：当与杀精子凝胶剂和乳膏合用时，非常有效。

  插入阴道隔膜：1.把杀精子凝胶剂涂进隔膜内和轮缘上；2.压扁隔膜并插入；3.把隔膜推送至子宫颈并检查位置是否正确。
Inserting the diaphragm. 1. Putting spermicidal jelly inside the diaphragm and on its rim.2. Squeezing the diaphragm together for insertion.3. Putting the diaphragm on the cervix and checking its correct position.

Contraception

Methods of Contraception: Contraceptive Methods for Women

Diaphragm and Jelly
The diaphragm is a small, flexible, bowl-shaped device made of rubber that fits closely over the cervix, where it mechanically blocks the sperm cells from entering the uterus. In order to increase its effectiveness, the diaphragm is used together with a spermicidal jelly or cream, which is put inside it and spread around its rim. Since different women are built differently, diaphragms come in different sizes and have to be fitted by a doctor. (A woman should be rechecked for size every two years and after each pregnancy.) The doctor will also teach the woman how to insert the diaphragm properly.
The diaphragm is inserted up to six hours before sexual intercourse and must be left in place for at least eight hours afterwards, if the couple wants to engage in coitus again before that time, more cream or jelly must be inserted into the vagina (without removing the diaphragm, of course). After the diaphragm has been removed, it is washed with soap and water and can be used again.
Effectiveness: very effective when used with spermicidal jelly or cream.