Constipation is divided into various types, different types, different performance, the details are as follows: 1, slow transmission type constipation: light 3-5 days defecation once, heavy half a month defecation once, hard stool, small amount, fishy smell, manifested as abdominal distension, abdominal pain, bad breath; 2, export obstruction type constipation: most commonly seen in the rectal protrusion, rectal mucosal relaxation, rectal overlap, manifested as a bowel movement, but defecation difficulties, normal stool properties; 3, mixed constipation: manifested as abdominal distension, defecation difficulties; 4, anal incontinence type constipation: mostly seen in the elderly, manifested as anal incontinence.