Two month old baby is always dry heaving, may be physiological factors, may also be intestinal obstruction, milk protein allergy and other pathological factors. 1. Physiological factors: two-month-old babies due to the esophagus is flaccid, stomach capacity is small, was horizontal, if the overfeeding will cause dry heaving, it is recommended to adjust the feeding mode, burp after milk, to avoid overfeeding caused by dry heaving. 2. Pathological factors: If it is due to intestinal anatomical abnormalities or intestinal dysfunction of intestinal obstruction, it will cause the two-month-old baby is always dry heaving. If it is due to the baby’s body’s immune system to the milk protein overreaction caused by dry heaves, usually accompanied by mucus blood stools, etc., can draw blood to check the allergens, under the guidance of the doctor to replace the hydrolyzed milk powder. The two-month-old baby is always dry heaving, there may be other reasons, it is recommended to go to the hospital, complete the examination to determine the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.