Baby crying while drinking milk, may be intestinal spasm, may also be due to oral inflammation or indigestion. 1. intestinal spasm: if the baby has intestinal spasm, there will be the phenomenon of crying while drinking milk, especially when eating milk will appear reflexive bowel movement acceleration, intestinal spasm is more obvious. 2. Oral inflammation: If the baby has oral inflammation, there will be pain in the mouth when drinking milk, which will be manifested in the phenomenon of crying while drinking milk. 3. indigestion: due to the baby’s gastrointestinal function is more fragile, especially born within three months of the baby, gastrointestinal function development is immature, there may be indigestion, such as gastric distension and other factors, will induce the baby to drink milk drink crying. If the baby appeared to drink milk while crying phenomenon, it is recommended to closely observe, abnormalities in a timely manner to consult a doctor, follow the doctor’s instructions for symptomatic treatment.