Fibrous membrane encapsulation, also known as “abdominal callus”, was named in 1978 and is a relatively uncommon disease in abdominal surgery. It is characterized by a dense, grayish-white, tough, hard and thick fibrous membrane wrapped around all or part of the small intestine. So what are the preventive measures for fibrous membrane wrapping? 1, treatment abdominal cocoon disease treatment to surgery, 1cm from the base of the envelope to remove the envelope or incision of the envelope fixed in the lateral abdominal wall, there are adhesions, narrowing ring fully loosened, complete release of obstruction so that the small intestine anatomical reset or additional intestinal arrangement, etc.. The vast majority of patients’ symptoms disappear after surgery, and a few patients with residual symptoms can continue to take prednisone and vitamin B1 treatment to relieve symptoms. The relationship between the intestinal canal and the mass should be carefully observed during the operation, and the whole piece of small intestine in the envelope should not be removed or mistakenly treated as tumor, which may lead to short bowel syndrome. 2.Prognosis Most of the patients’ symptoms disappear after surgery, and a few patients with remaining symptoms can be relieved by non-surgical treatment.