The parts of the body that are most likely to be damaged by a pelvic fracture are the bladder, anus, rectum, and, in the case of a woman, the uterus. Because these tissues and organs are close to the pelvis, if the pelvis is fractured, the fracture, if misaligned, will easily puncture the above tissues and organs, thus causing them to rupture and bleed. If there is urine inside the bladder, it is very likely that the urine will flow into the abdominal cavity, which will lead to the accumulation of fluid in the abdominal cavity and acute peritonitis, resulting in abdominal muscle tension in the abdomen, pressure pain in the whole abdomen, rebound pain, and other manifestations of acute peritonitis. If the damage to the anorectum is easy to ulcerate the formation of anal fissure, anal fistula, the wound is easily infected without healing.