Constipation is one of the most common clinical symptoms. According to its characteristics, it can be divided into slow transmission constipation and outlet obstruction constipation. Clinical manifestations of constipation include dry, coarse, hard, granular stools, prolonged defecation time, frequent defecation, small defecation volume each time, incomplete defecation, and difficulty in defecation, all of which are called constipation. This kind of constipation belongs to slow transmission type constipation, that is, the colon peristalsis is too slow, the transport time of stool in the colon is too long, resulting in dry, granular stool. The main treatment is to laxative, promote intestinal peristalsis, you can solve the problem of dry stools, granular.