A baby’s low milk intake may be a normal phenomenon of anorexia, or it may be caused by indigestion, or it may be due to a cold, with different causes and different treatments. 1. Physiological factors: the baby in 3 ~ 4 months may appear a short period of anorexia, this is due to the slowdown in the baby’s growth and development, in addition, if the baby began to teething, then there may also be a short period of anorexia, these circumstances will lead to the baby drink less milk, this is a normal phenomenon, usually can be improved on their own. 2. indigestion: if the baby has indigestion, then there will also be a baby drinking less milk symptoms, treatment should pay attention to the diet of the breastfeeding mother, to light and easy to digest food, in addition to the baby bifidobacteria and other probiotic drugs to regulate the intestinal micro-ecology. 3. colds: if the baby suffers from colds and other infectious diseases, can also lead to the baby to drink less milk performance, treatment should let the baby more rest, if the baby fever to 38.5 ℃ or more, can be given to ibuprofen suspension and other drugs for treatment, if the baby secondary bacterial infection, can be given to the cephalosporin and other drugs for anti-infective treatment. After eliminating the physiological factors, if the baby’s symptoms of low milk consumption continue to be unrelieved, it is recommended to consult a doctor in time to find out the cause and ask the doctor to deal with it. All of the above medications should be used under the guidance of a doctor, avoid self-medication.