This document provides an outline and overview of pelvic inflammatory disease (PID). It begins by defining PID as an inflammatory syndrome caused by the ascending spread of microorganisms from the vagina or cervix into the upper female genital tract. Risk factors include sexually transmitted infections, multiple partners, and douching. Symptoms can include abdominal and pelvic pain, abnormal bleeding, and discharge. Treatment involves antibiotics and sometimes surgery. Without treatment, PID can lead to long-term complications like infertility, ectopic pregnancy, and chronic pelvic pain.