Not having a bowel movement for several days is still more harmful to the human body. Food residues in the stool, as well as germs and bacteria cannot be eliminated in time, they may be absorbed by the stomach and intestines, or lead to imbalance of intestinal flora, diarrhea, enteritis and other diseases. Long-term failure to defecate will cause the bowel movement to slow down, and may directly turn into constipation. Not having a bowel movement for a few days may also cause hemorrhoids or gastrointestinal bleeding, and in serious cases there is a certain possibility of colon cancer. It is recommended that patients go to the anorectal hospital in time for consultation and examination, and also take oral laxative drugs, such as cisapride, lactobacillus tablets, etc. The specific medication should follow the doctor’s advice. Usually, you should eat more sweet potatoes, bananas and other coarse fiber foods, and develop a good habit of daily bowel movement.