World health organization

10 facts on sexually transmitted infections

A man and woman look out from the window of their home.

Sexually transmitted infections are important causes of Fallopian tube damage that lead to infertility in women. Between 10% and 40% of women with untreated chlamydial infections develop symptomatic pelvic inflammatory disease. Post-infection damage of the Fallopian tubes is responsible for 30% to 40% of female infertility cases.

© WHO. All rights reserved.