The following conditions are considered to be the cause of anal distension and inability to defecate: 1. It may be caused by anal obstructive constipation, which mostly occurs in patients who are bedridden for a long time and in the elderly. Due to the lack of exercise and age, the function of the anal sphincter gradually decreases and the anus becomes weak when defecating so that the stool cannot be expelled. 2, may be due to too dry stool, most of which is due to the recent consumption of too much less easily digestible food, resulting in dry, hard stool, you can use corky lotion to soften. 3, may be due to insufficient gastrointestinal power, this situation The company’s main business is to provide a wide range of products and services to its customers.