Intestinal melanosis generally refers to colonic melanosis, and the most important cause of colonic melanosis is the use of a stimulant laxative. The irritating laxative should be stopped immediately and constipation improved by other means. Adjust the diet structure, coarse and fine. Eat more fiber-rich vegetables, such as celery, spinach and other leafy green vegetables and fruits; drink more water to ensure sufficient water intake; exercise more to increase bowel movement to promote defecation and develop good bowel habits, and do not rely on laxatives. If necessary, lubricant laxatives, gastrointestinal motility drugs, and intestinal microecological preparations can be used to adjust defecation. In addition, this disease is a benign reversible lesion, do not have excessive psychological stress, ensure smooth bowel movements, and avoid the abuse of stimulant laxatives.