Half a year after colon surgery, the hard ball shape of the stool is a manifestation of dry stools, mainly caused by constipation, constipation is caused by diet, rest and relaxation and other reasons. 1. Diet: If you eat food that is not easy to digest, it will cause slow peristalsis, reduce the number of bowel movements, with the prolongation of feces in the intestine, water loss and dry stools, so you should eat a reasonable diet, eat more food rich in crude fiber, you can eat some laxative effect of food, such as bananas, celery, corn, oatmeal and so on. 2. Work and rest: there is no good defecation habits, such as squatting toilet playing with cell phones, not regular defecation, etc., if you do not exercise, it will also cause constipation, so it is recommended to develop a good habit of regular daily defecation to form a conditioned reflex. Appropriate exercise to promote gastrointestinal motility. Constipated patients if the time interval between defecation is too long, hard and dry ball of stool, difficult to defecate, or abdominal pain and other discomforts, should seek medical attention in a timely manner, do not blindly use medication, under the guidance of the doctor can be oral medication or topical medication to relieve.