Pelvic connective tissue is extraperitoneal tissue, located behind the pelvic peritoneum, on both sides of the uterus and in the space before the bladder. There is no obvious boundary between the connective tissues in these parts. Pelvic connective tissue inflammation is a pelvic inflammatory disease, which can be divided into acute and chronic: 1. Acute pelvic connective tissue inflammation Acute pelvic connective tissue inflammation (acute parametritis) refers to the initial inflammation of the pelvic connective tissue, not secondary to inflammation of the fallopian tubes and ovaries, but initially in the connective tissue beside the uterus, and then spreads to other parts. 2. Chronic pelvic connective tissue inflammation Chronic pelvic connective tissue inflammation is mostly due to incomplete treatment of acute pelvic connective tissue inflammation, or the patient's physical condition is poor, and the inflammation is prolonged and becomes chronic. Since the lymphatic vessels of the cervix are directly connected to the pelvic connective tissue, pelvic connective tissue inflammation can also develop from chronic cervicitis. The pathological changes of this disease are mostly that the pelvic connective tissue changes from congestion and edema to fibrous tissue, thickened and hardened scar tissue, which is connected to the pelvic wall. The uterus is fixed and cannot move, or its mobility is restricted. The uterus is often biased towards the pelvic connective tissue on the affected side.