Eight months baby constipation is divided into functional constipation, organic constipation, the treatment is mainly based on general treatment, drugs, surgery. 1. Functional constipation: baby functional constipation may be related to dietary inappropriateness, such as improper combination of meat and vegetables, drink less water, intake of less dietary fiber and other foods, this in addition to the need to pay attention to dietary balance, eat more fresh fruits and vegetables, but also the need to drink more water, if necessary, you can add a probiotic such as Bacillus subtilis two and other medications to regulate. 2. Organic constipation: If the eight-month-old baby often constipated, and also accompanied by abdominal pain, abdominal distension, crying, etc., may be related to organic constipation, such as congenital megacolon, intestinal obstruction, etc., usually need to identify the cause of the surgical treatment. Eight-month-old baby constipation is recommended to go to the hospital in time for relevant examinations, clear causes and then actively symptomatic treatment. The above medications should be taken under the guidance of a doctor and should not be used on their own.