Cause: usually chlamydia or gonorrhea
Symptoms: lower abdominal pain, pelvic pain, severe menstrual-like cramps, malodorous vaginal discharge, fever
Complications: sterility (inability to become pregnant), chronic pelvic pain, pain every time you have intercourse, hysterectomy (removal of womb due to uncontrolled infection)
Treatment: hospitalization for aggressive antibiotic and supportive therapy
Prevention: Don't get chlamydia or gonorrhea; get treated early for any possible infection while it's still easy to cure.