The granularity of feces is related to factors such as slow gastrointestinal peristalsis, irrational dietary structure, and lack of exercise. Discharge of feces in the form of particles, mainly related to long-term constipation. Causes of slow gastrointestinal peristalsis is more reasons, age, activity reduction, intestinal diseases, will lead to weakening of digestive function, after eating can not be quickly digested, absorbed, resulting in long-term stay in the colon, the water inside the stool is repeatedly absorbed, so there will be granular stools. Long-term constipation has a greater impact on the body, which can cause hemorrhoids to recur, leading to anal fissure and colon disease. In addition, it is considered to be caused by long-term dietary structure irrationality, such as stimulating food, processed food, drinking less water, too little intake of fiber food, which will lead to intestinal dryness, these foods stay in the large intestine for a long time, resulting in dry stools, granular, and difficult to discharge. In addition, often eat fat, sweet and thick food, long-term sedentary, lack of exercise, poor defecation habits, can also cause stool dryness.