Spherical stool in the front part of the stool and normal in the back part is caused by constipation and irritable bowel syndrome. Usually not paying attention to exercise and eating fine food often leads to constipation, which will cause slow intestinal peristalsis and relatively longer time for the stool to remain in the intestine. The rectum mainly absorbs the water in the stool, and when the stool remains in the rectum for too long and the water is excessively absorbed by the rectum, the stool will become too dry, resulting in globular feces and the second half of the stool is normal. Irritable bowel syndrome is caused by bad emotions, and the disease leads to slow intestinal peristalsis and disturbances in intestinal function, resulting in spherical stools in the front part of the stool and normal stools in the back part.