Pelvic floor hernia is a condition in which the peritoneum and abdominal organs or tissues of the pelvic floor protrude into the genital sulcus of the rectum. It is mainly caused by weakness of the pelvic floor muscles and damage to the supporting structures of the upper fascia of the posterior vaginal wall. The contents of the hernia are mostly the small intestine, sigmoid colon, and possibly the uterus and greater omentum. Pelvic floor hernia is also known as Douglas hernia and pelvic floor peritoneal bulge. Clinical symptoms can be seen as decreased frequency of bowel movements or difficulty in passing stool, accompanied by abdominal distension, abdominal pain, nausea, and lumbosacral pain, which affects the quality of life.