The peritoneum grows around the entire periphery of the abdomen and is a membrane tissue that covers the abdominal and pelvic cavities. The peritoneum is an important part of the body’s abdominal cavity, and although it is thin, it is divided into two layers. The one in contact with the visceral organs of the abdominal cavity is called the visceral peritoneum, and the mural peritoneum is close to the visceral peritoneum and covers the inner part of the abdominal and pelvic cavities, which is called the mural peritoneum. The human peritoneum has a certain secretory function and is able to secrete a certain amount of mucus to help lubricate the abdominal cavity and improve the abdominal environment. At the same time, the mucus secreted can also reduce the friction between the abdominal internal organs during exercise. In addition, the peritoneum also has the role of protecting the internal organs, the peritoneum can block the external infection outside the abdominal wall, so that the external infection is not easy to invade the abdominal cavity. At the same time, the peritoneum plays a role in maintaining the structural integrity of the abdomen. The peritoneum can also be diseased, so if there are obvious symptoms of abdominal discomfort, you should go to the hospital in time for examination and treatment.