The baby does not eat milk, always eat hands may be physiological anorexia, or thrush, xenophagia and other diseases. 1. physiological anorexia: research has shown that physiological anorexia often occurs in 3 months to 4 months of age of the baby, mainly related to the stage of the baby’s growth and development rate is reduced, the nutrients and energy demand is reduced, so the baby will not eat milk, always eat the hand of the situation. 2. Thrush: the disease is caused by the over proliferation of candida in the oropharynx, related to the low immunity of infants and young children, mainly manifested in the palate, the buccal mucosa, the surface of the tongue and other white patches, common symptoms of irritability, breastfeeding difficulties, etc., due to the age of the baby is small, and will not speak, so there will be a way to express the oral cavity discomfort by eating the hands. 3. Ectophagia: the cause of this disease is not clear, research has shown that it may be related to intellectual developmental disorders, nutrient deficiencies, lack of parental supervision, etc. Typical symptoms are that the affected children often eat something other than food, which can be manifested as not eating milk, always eating hands. The baby does not eat milk, always eating hands 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.