Wound hyperplasia more than a year after gallstone surgery may be caused by scar proliferation, abdominal wall incisional hernia and other reasons. 1. Wound hyperplasia more than one year after gallstone surgery may be caused by scar hyperplasia, because the local infection, stimulation of injury caused by fibrous connective tissue overgrowth, scar bumps bulging, epidermis with verrucous hyperplasia, there may be gallstones more than one year after surgery wound hyperplasia phenomenon. 2. Wound hyperplasia one year after gallstone surgery may be caused by abdominal wall incisional hernia. After gallstone surgery, abdominal incision may heal poorly to form an abdominal wall incisional hernia, and there is a swelling protruding from the abdominal wall incision site, leading to the symptoms of wound hyperplasia one year after gallstone surgery. Patients with wound hyperplasia more than a year after gallstone surgery should go to the hospital as soon as possible to clarify the cause of the disease, and standardized treatment under the guidance of the doctor.