Long-term constipation in babies may be caused by functional constipation, congenital megacolon and other factors, and can be treated with general therapy, corkscrew, lactulose and other medications, and surgery if necessary. 1. Functional constipation: caused by poor defecation habits, dietary habits, you can develop the habit of regular defecation, while increasing the content of dietary fiber in the food, you can relieve the symptoms, if necessary, you can use corkscrew laxative, lactulose diarrhea and so on. 2. Congenital megacolon: it can lead to persistent constipation, and once diagnosed, it is usually treated with surgery. The principle of surgery is to remove the intestinal segments that lack ganglion cells as well as those that are significantly dilated and hypertrophied, in order to achieve the goal of eradicating the disease. Baby long-term constipation may have other reasons, it is recommended to consult a doctor in a timely manner to identify the cause, the cause of treatment, the above medication as prescribed by the doctor.