Baby head itching at night may be physiological reasons, such as sweating more caused; may also be pathological reasons, such as eczema, ringworm and other causes. 1. physiological reasons: baby due to the characteristics of thermoregulation, in the night will sweat more, sweat stimulation can appear itchy, the baby will appear scratching the head, parents should dry the sweat in a timely manner, to prevent the stimulation of the local skin, to keep the local clean, dry. 2. Pathological causes: (1) Eczema: when the baby suffers from eczema, the vagus nerve is excited at night, and the itching will be aggravated, and the child may appear scratching, which is obvious on the scalp, face, neck and forehead, so the baby may appear scratching the head. (2) Ringworm of the head: ringworm of the head is caused by fungal infection, which can be manifested as increased dandruff and itching, etc. Pay attention to checking the baby’s scalp and go to dermatology if necessary. If physiological causes are ruled out, the baby should go to the hospital in time to avoid delay.