Baby fever does not eat milk may be related to urinary infection, common cold, mouth ulcers and so on. 1. Urinary infection: baby immunity is poor, when the urinary tract is invaded by pathogens easily cause infection, appear to have fever and other symptoms of discomfort. It can also affect the function of the digestive tract, poor appetite. 2. Common cold: it may be due to cold or viruses, bacteria and other pathogens invasion, caused by the baby fever. If accompanied by inflammation of the tonsils, at this time the baby’s tonsils are painful, may appear reluctant to eat milk. 3. Mouth ulcers: If the baby mouth ulcers, did not pay attention to the wound clean and infected, will also be accompanied by fever. Eating milk will stimulate the ulcers to produce pain, will also cause the baby reluctant to eat milk. The baby fever does not eat milk may also have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.