Most of the baby hair loss belongs to physiological, and constant friction also has a certain relationship. Parents should not be overly nervous about baby hair loss, most cases are normal physiological metabolic phenomenon of the baby, baby hair loss will gradually grow new hair. Baby fetal hair fall at the same time, accompanied by sweating more, occipital baldness and other phenomena, and the lack of calcium has a relationship, can be under the guidance of pediatricians, give vitamin D and calcium supplements to correct the baby’s calcium deficiency. The baby is active, the head often friction is also easy to cause hair loss, rapid development period, the metabolism is stronger. It is important to note that babies with abnormalities such as pillow baldness, crying and excessive sweating need to go to the hospital to check if there is any calcium deficiency due to vitamin D deficiency.