Bad hair in babies may be due to the lack of vitamins, proteins and trace elements. 1. Vitamin D and Calcium Deficiency: If the baby eats poorly. Insufficient calcium intake, or lack of vitamin D, will show that the baby’s head is sweaty, and the baby may turn his head repeatedly, resulting in thinning hair on the occiput. 2. Protein: If the baby’s body protein, calorie intake is insufficient, the body may be malnourished, the cells can appear atrophy, there can be slow hair growth, reduced immunity. Affect the growth and development of the body. 3. hypothyroidism: hypothyroidism baby can also can also appear jaundice subside delay, mental retardation, thinning hair, skin roughness and other manifestations, you can improve the thyroid function complete set of examination, if any abnormality can be supplemented under the guidance of the doctor to the levothyroxine sodium tablets for treatment. If the baby’s hair is not good, you can go to the hospital children’s health department in time, under the guidance of the doctor to be targeted treatment. In addition, due to the baby’s metabolism is faster, daily attention should be paid to keep the scalp clean, regular cleaning, and develop good habits.