Constipation is not exclusive to adults, but can also occur in babies due to improper care. Parents should pay attention to their babies’ stools while keeping them well-fed and warm. As baby food is becoming more and more refined nowadays, constipation is happening more and more. And constipation has a certain impact on the baby’s growth and development, but it is not so easy to correct. Therefore, many mothers are anxious and headache, often feel helpless. Then how to avoid baby constipation, listen to the experts’ advice. For mild, self-limiting constipation (infants with difficult bowel movements) the best treatment option is careful observation and patient parental instruction to improve the infant’s poor bowel habits. For constipation requiring treatment, there is no evidence that 2-4% lactulose for 2 weeks is more effective. It is unclear whether intra-anal thermometry, the use of glycerol, and the administration of sorbitol-containing juices are beneficial or harmful, but the most dangerous are the use of sodium phosphate enemas and the use of mineral oil, which are contraindicated in infants with constipation. The frequency and patency of stools in infants often fluctuate physiologically, depending in part on diet. Table 1 summarizes the types of functional bowel disorders and associated symptoms that are common in infants and young children. Functional bowel disorders in young children are often a continuation of their difficult bowel movements as infants and can also progress to functional constipation and functional stool retention. Most infants have defecation difficulties or constipation, which are self-limiting and caused mainly by uncoordinated activity of immature muscles, and therefore require only parental education for gradual improvement. Experts are not aware of any placebo group setting in studies of osmotic laxatives, nor of studies of mineral oil and sodium phosphate enemas, the use of which is likely to cause liposuction pneumonia in infants younger than 1 year. Sodium phosphate enemas are likely to cause disturbances in dielectric balance as well as dehydration and cardiac arrest in infants younger than 2 years of age.