Contraceptive sponge

Contraceptive sponge is a type of birth control method that is soft, round, and about two inches in diameter. It is made of plastic foam and contains spermicide, a type of chemical that kills sperm. The contraceptive sponge is placed inside the vagina before sexual intercourse to prevent pregnancy.

Mechanism of Action

The contraceptive sponge works in two ways. First, the sponge releases spermicide, which kills sperm and prevents them from fertilizing an egg. Second, the sponge acts as a barrier, blocking the sperm from reaching the egg.

Effectiveness

The effectiveness of the contraceptive sponge varies depending on whether or not the woman has given birth. For women who have never given birth, the sponge is about 91% effective. For women who have given birth, the sponge is about 80% effective.

Advantages and Disadvantages

There are several advantages to using the contraceptive sponge. It is easy to use, can be inserted up to 24 hours before sexual intercourse, and does not require a prescription. However, there are also some disadvantages. The sponge does not protect against sexually transmitted infections, and some women may be allergic to the spermicide.

Side Effects

Some women may experience side effects from using the contraceptive sponge. These can include vaginal irritation, allergic reactions to the spermicide, and difficulty removing the sponge.

See Also

• Birth control
• Spermicide
• Sexually transmitted infections

Contraceptive sponge Resources
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