The basic treatment of constipation is the most important measure in the treatment of constipation, including defecation habit training, reasonable diet, adequate water intake and increasing the activity level, etc. The basic treatment of constipation is the most important measure in the treatment of constipation. 1, defecation habit training The onset of functional constipation is highly related to the lack of or irregular defecation habit training, and defecation habit training plays an important role in the prevention and treatment of functional constipation. Infantile defecation is reflex defecation, manifested as a subdivided defecation, defecation reflex instantly, without control. Conscious defecation is a conditioned reflex that adapts to the needs of social life, and can defecate on time, regularizing children’s lives and preventing constipation and fecal incontinence. Early defecation habit training for children can quickly enter the conscious defecation. Defecation habit training training for progressive training, the training process is child-oriented, focusing on children’s defecation preparation, allowing repeated practice, according to the child’s interest, ability to gradually training, generally at 18 months. In the process of defecation habit training, the preparation of attractive appearance, brightly colored commode, placed in the child easy to use location (not necessarily the bathroom), to encourage children to sit on the commode for a while every day. Encourage children to sit on the commode for a short period of time each day. The commode should be at an appropriate height so that the knees are above the level of the hips and the feet are on the ground to facilitate straining. Instruct children to learn to defecate in a forceful way, after the exhalation of breath holding, increase intra-abdominal pressure, and learn to coordinate the movement of internal and external anal sphincter. The time of defecation habit training is usually 30~60min after meal, each time 5~10min is more suitable, avoid long squatting during defecation, and parents should explain to children that this time is suitable for defecation. Children’s self-confidence is relatively fragile, so during the training period, if defecation failure should not be reprimanded, pay attention to eliminate the child’s sense of tension. The phenomenon of backwardness may occur during training, such as holding back the feces without defecating. Backwardness is a normal phenomenon during training and does not mean failure, parents should accept this fact and do not need to be anxious or put pressure on the child. 2, reasonable diet Reasonable diet is an important method of treatment for children with constipation. Constipated children “reasonable diet” should focus on dietary fiber intake. At present, the domestic children’s dietary fiber intake is generally less, manifested as a reduction in the intake of coarse grains, 37% ~ 42% of children with constipation seldom eat vegetables and fruits and other foods rich in dietary fiber. Dietary fiber has the effect of absorbing water, softening stool, increasing the amount of stool, and at the same time by the intestinal flora fermentation to produce short-chain fatty acids and gas to stimulate colonic peristalsis, and a small portion of dietary fiber is not fermented directly into the fecal component. Through the above effects to soften the stool, reduce the colon through the time of the purpose. However, too much dietary fiber intake will increase intestinal peristalsis and gas production, causing abdominal discomfort, while inhibiting pancreatic enzyme activity, affecting protein and other nutrients digestion and absorption. At present, there is no recommended standard of dietary fiber intake for children, and the intake is often 0.5g/(kg・d). 3, adequate amount of water, the main factors affecting the dryness of the feces, including the slowing down of the transmission time of the colon and the reduction of the water content of the stool. Therefore, in addition to trying to improve colonic transport function, adequate water intake is essential to improve fecal dryness and relieve constipation symptoms. Children’s water intake varies according to age and weight, while water intake should be moderately adjusted with the season, temperature and physical activity, and observation of children’s feces is appropriate for frequent evacuation of 4 or 5 levels of feces. 4, increase the amount of activity sedentary, reduced activity is an important factor leading to constipation. The treatment of children’s constipation should be individualized for each case, through the history of the amount of activity, to be specific guidance. Encourage children to participate in a variety of physical activities, cultivate the habit of labor, can walk on the occasion as far as possible not to take the car, up and down the stairs to climb the stairs, should be more than 1h daily physical exercise.