What condition is usually caused by sexually transmitted infections and can lead to infertility?

The condition typically caused by sexually transmitted infections (STIs) that can lead to infertility is pelvic inflammatory disease (PID). PID refers to the inflammation of the female reproductive organs, including the uterus, fallopian tubes, and ovaries, often resulting from STIs like chlamydia and gonorrhea. When left untreated, PID can cause scarring and damage to these reproductive structures, which can subsequently lead to complications such as infertility or ectopic pregnancy.

Endometriosis, while it can also impact fertility, primarily arises from the presence of endometrial tissue outside the uterus and is not directly caused by STIs. Vulvitis is the inflammation of the vulva, which is usually due to irritants or infections not necessarily linked to STIs, and might not have a direct relationship with fertility. Cervicitis is an inflammation of the cervix, often resulting from infections, but it does not carry the same significant risk of infertility as PID does. Thus, pelvic inflammatory disease is the most directly linked condition to infertility arising from sexually transmitted infections.