The child can not poop if the constipation caused by dietary irrationality can be given to adjust the diet and so on, if the constipation caused by intestinal flora imbalance can be taken probiotics and so on. 1. Diet structure is unreasonable: children who do not like water, or usually do not like to eat vegetables, fruits and other foods, may lead to dry stools, causing constipation, need to adjust the results of the diet, usually pay attention to replenish the water, eat more vegetables containing crude fiber, as well as vitamin-rich fruits, etc., is conducive to defecation, if the stool is dry and difficult to dissolve can be given to Keseru laxative to alleviate constipation. 2. intestinal flora disorder: if the baby due to disease, medication and other reasons caused by intestinal flora imbalance, constipation, can be given probiotics such as bifidobacteria triple living bacteria, bacillus subtilis bifidus, etc. to regulate the intestinal flora, relieve constipation. Children can not poop should be under the guidance of a doctor to clarify the cause of the disease, reasonable treatment. The above medication should be used under the guidance of a doctor.