Infant hair standing up may be caused by micronutrient deficiencies, malnutrition, etc., which can be pressed down by supplementing micronutrients, correcting malnutrition, etc. However, if infant hair standing up is caused by genetic factors, no special treatment is needed. 1. Supplementation of trace elements: the lack of certain trace elements in infants can lead to hair standing up, such as calcium, zinc, iron, etc., then the infant should be supplemented with the appropriate trace elements in a timely manner, so that the hair will be pressed down. 2. Correct malnutrition: If the baby’s hair stands up due to malnutrition, the first thing to do is to correct the baby’s malnutrition, after the baby is 4~6 months old, you can add complementary foods to the baby, such as egg yolk, fish, shrimp and so on. 3. Genetic factors: If the baby’s hair is naturally thicker and harder, and the parents of the hair quality is also coarse and hard, then the baby’s hair up is likely to be due to genetic factors, most can not be pressed down, generally do not need special treatment. There may be other reasons for the baby’s hair to stand up, it is recommended to go to the pediatric department of the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or standardized treatment.