Why Condoms Are Your First Line of Defense

Condoms are one of the oldest and most effective forms of contraception and disease prevention available today. Unlike hormonal birth control or IUDs, condoms provide a physical barrier that protects against both unintended pregnancy and sexually transmitted infections (STIs).

How condoms work

A condom is a thin sheath — usually made of latex, polyurethane, or polyisoprene — that fits over the penis or lines the vagina. It physically blocks sperm from reaching the egg and prevents direct skin-to-skin contact that can transmit infections.

What condoms protect against

HIV and other STIs including gonorrhea, chlamydia, and syphilis
Unintended pregnancy (98% effective when used correctly every time)
HPV and herpes (reduces risk, though not 100% due to skin-to-skin spread)

Why condoms are unique

No other contraceptive method simultaneously prevents STIs and pregnancy. This dual protection makes condoms essential even when other birth control is used.

Key takeaway

Using a condom correctly every time you have sex is one of the most powerful health choices you can make.