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Understanding Women''s Sexual Health
March 31st, 2026

What is the Most Common STD in Women?

Chlamydia is the most common STD in women, accounting for over 1.7 million reported cases annually in the United States. This bacterial infection often presents without symptoms, making regular screening crucial for sexually active women. The CDC recommends annual chlamydia testing for all sexually active women under 25 and older women with risk factors like new or multiple partners. Left untreated, chlamydia can lead to pelvic inflammatory disease, which affects fertility and increases the risk of ectopic pregnancy. Early detection through routine testing allows for simple antibiotic treatment that typically clears the infection within a week.

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