Whether or not it is normal to have a bowel movement once every two days depends on the nature of the stool and the symptoms at the time of the bowel movement. If there are no unusual symptoms or changes in the nature of the stool, it is normal. The frequency of bowel movements is normal: 1 to 2 days and 1 to 2 times a day are considered normal. If there is no abnormality in the color or character of the stool, yellow or yellow-brown formed stool, no hard stool, loose stool, watery stool, blood stool, and no difficulty in defecation, abdominal distension, abdominal pain, etc., and if you have regular bowel movements, then once every two days is normal. All in all, whether once every two days is normal or not, we need to make a comprehensive judgment.