Diaphragms, Caps

The diaphragm or cap is a mechanical barrier placed in the vagina to prevent sperm entering the womb. There are diaphragms, caps, and vault caps. They consist of a soft rubber dome with a circular metal spring enclosed in its rim. The diaphragm or cap is inserted by squeezing it sideways and sliding it along the back wall of the vagina until it rests behind the neck of the uterus. The front is pushed back behind the pelvic bone and the expanded ring keeps it in place. These devices must be fitted by a doctor as the sape and size of the women vary greatly.

The woman must act responsibly while using the diaphragm and make sure that she uses a chemical spermicide as well. Out of 100 women who rely on it for a full year, about 12 are likely to become pregnant.

All diaphragms and caps on the New Zealand market have passed the Consumer Council tests. They are:-

Durex, Lam-Butt, Ortho, Dumas Cap, Vimule Pessary.