Sclerofibroma, also known as ligament-like tumor, is a rare benign tendon membrane overgrowth, which is estimated to occur in 3.7 new cases per year in a million population. It occurs in muscles, tendon membranes and deep fascia, and is very hard, and can occur in all parts of the body, mostly in the abdominal wall, but also in the abdominal and skeletal muscles. Wang Zhimin, Department of Anorectal Medicine, Shandong Qianfo Mountain Hospital