For physiological factors caused by the two-month-old baby for a long time without defecation, often with the gradual improvement of the function of the gastrointestinal tract can be relieved, for intestinal obstruction and other diseases caused by the need for etiological treatment. 1. Physiological factors: two months of the baby’s gastrointestinal tract development is not yet perfect, and the residue in the breast milk was very little, so this time there will be 2 days, 3 days or even a week only stool, if there are no other symptoms, often do not have to carry out a special treatment, with the age of the growth will gradually improve. 2. Pathological factors: diseases can also cause two-month-old babies do not defecate, such as intestinal obstruction, congenital megacolon, etc., which is often accompanied by abdominal distension, vomiting and other symptoms, need to be treated for the cause. Children with intestinal obstruction can be treated with surgery and non-surgical treatments such as fasting, fluids and enemas. When the baby has not had a bowel movement for a long time and is accompanied by other abnormal symptoms, he or she should go to a regular hospital and be treated under the guidance of a doctor.