After drinking milk baby back stiffness, may be too much milk, swallowed air and other abdominal discomfort, parents can feed on demand, milk can be appropriate after patting the back and other measures, but there may be a seizure, when the baby can have stiff limbs, eyes staring and other manifestations, should be in time for pediatrics. 1. Abdominal discomfort: when the baby eats too much milk or swallows air, causing the baby’s abdomen to be full, or even intestinal flatulence, resulting in abdominal discomfort, manifested as a stiff back, at this time, parents can feed on demand, and pat the back in a timely manner after feeding, and at the same time, observe the baby’s performance. 2. Seizures: If the baby in addition to the stiff back, but also accompanied by stiff limbs, eyes staring, lips bruising, teeth closed and other manifestations, more suggestive of seizures, should be timely pediatric consultation, improve the electroencephalogram and other tests to clarify the diagnosis. In conclusion, when the baby frequently appears after breastfeeding back stiffness, it is recommended to consult the pediatrician in a timely manner, to clarify the cause of the disease, to take targeted treatment.