Two-year-old babies with very coarse stools may be caused by improper diet, intestinal and gastrointestinal digestive insufficiency, or congenital megacolon disease. 1. improper diet: two-year-old babies consume too much food, or consume more high-calorie, high-protein food, such as eggs, cakes, etc., which can easily cause thicker bowel movements. 2. gastrointestinal digestive insufficiency: two-year-old baby’s gastrointestinal digestive system is not yet well developed, the bowel movement is slower, intestinal digestion of food produced by feces retained in the body, easy to constipation, stool coarse situation. 3. Congenital megacolon: with congenital megacolon of the baby colon part of the nerve cells are missing, intestinal peristalsis function is abnormal, feces accumulation in the intestines, resulting in increased pressure in the intestines, intestinal dilatation, triggered by defecation of thick situation. Parents need to give the baby more water, eat more food rich in dietary fiber and vitamins, such as vegetables, fruits and so on. If the baby’s stool is coarse and there is difficulty in defecation, it is recommended to go to the hospital for examination, to clarify the cause of the disease, and under the guidance of the doctor for symptomatic treatment.