Constipation in one-month-old babies has no rapid defecation method and needs to be treated according to the cause. One-month baby constipation generally consider indigestion or functional constipation, but can not rule out congenital megacolon and other diseases. 1. dyspepsia or functional constipation: under the guidance of the physician can be appropriate to increase probiotics (such as bifidobacteria, etc.) and digestive drugs (such as compound pepsin, etc.), can be clockwise to the child for abdominal massage and other methods of treatment, usually in the feeding above the need for a small amount of meals, can not be fed too full. 2. Congenital megacolon: it is caused by pathological diseases, which can be manifested as intestinal obstruction, persistent constipation and abdominal distension, etc., which can be treated by enterostomy and radical surgery. One month baby constipation, need to go to the hospital to clarify the cause of the disease, do not randomly use drugs. The above drugs need to be used in accordance with medical advice.