Pelvic inflammatory disease (PID) is a serious infection of the female reproductive organs. This includes the uterus, ovaries, and fallopian tubes. PID can cause scar tissue to form in the pelvis and fallopian tubes. This damage may result in infertility, a future tubal pregnancy, or chronic pelvic pain.

Female Reproductive Organs
Fallopian Tube, Ovary, and Uterus
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PID is caused by specific bacteria. The most common bacteria that initiate PID are gonorrhea and chlamydia.