HealthTree Blog

This continues our series on contraceptive methods.

The “sponge” is a device made of polyurethane that is inserted into the vagina before sex. It covers the cervix, thus preventing pregnancy by not allowing sperm to enter the uterus. It also contains a spermicidal ingredient that kills and absorbs the sperm.

The sponge was introduced to the market in 1983 and quickly became the most popular form of birth control that does not need a prescription. In 1994 there were concerns over the way the sponge was manufactured and it was taken off the market. However, it is now back on the market under the name “Today” sponge.

The effective rate for preventing pregnancy with sponge use is about 90 percent. It does not prevent the transmission of sexual transmitted diseases. The sponge remains a popular form of pregnancy prevention for women who want to control their own contraceptives.

Being widely available, small and discreet to carry, not being felt by a partner during sex, and having no ill hormone effects are all benefits of using the sponge. A sponge can be worn up to 30 hours and a woman can have sex several times without having to change it. If a woman decides to become pregnant after using the sponge for a time, there is no long-term side effects which would affect her chances of becoming pregnant.

The sponge has been linked to a rare life-threatening bacterial infection known as “Toxic Shock Syndrome”. Some women have trouble removing it and on occasion the sponge has been known to break. If it cannot be removed or it breaks, a medical professional should be consulted.

The sponge contains spermicide nonoxynol-9 which can increase the risk of HIV in some persons. The price of the sponge is quite inexpensive, ranging from $9 to $15 for three and are available at most drugstores. It may also be ordered from the internet.