acute or chronic suppurative inflammation of female pelvic structures (endometrium, uterine tubes, pelvic peritoneum) due to infection by Neisseria gonorrhoeae, Chlamydia trachomatis, or other organisms, typically a complication of sexually transmitted infection of the lower genital tract, may be precipitated by menstruation, parturition, or surgical procedures including abortion; complications include tuboovarian abscess, tubal stenosis with resulting infertility or sterility and heightened risk of ectopic pregnancy, and peritoneal adhesions.