Pelvioperitonitis - inflammation of the peritoneum of the pelvis (pelvic peritonitis) - almost always is a secondary process and develops as a complication in inflammation of the uterus or its appendages. In some cases, the formation of pelvioperitonitis can lead to perforation of the uterus (with abortion, diagnostic scraping), acute appendicitis, torsion of the legs of the ovarian cyst and other diseases and pathological processes in the pelvic region.