Hair loss in children may be caused by baldness, ringworm, or hair pulling. 1. Patch baldness: Patch baldness is a sudden onset of limited patchy hair loss disease, the disease can lead to children to appear hair loss a piece of the symptoms, this is a genetic, emotional stress, autoimmune and other factors related to the disease, the child can also appear beard, eyebrows, eyelashes and other places of the hair is also patchy loss. 2. ringworm of the head: ringworm of the head is a kind of skin fungus infection of the scalp and hair caused by the disease, the disease can also lead to children appear hair loss a piece of symptoms, children can also appear scalp itching, scalp surface with scaly lesions and other symptoms. 3. Trichotillomania: If a child suffers from trichotillomania, he or she may also experience hair loss, and bleeding spots can be seen on the top of the child’s head, and the child may be accompanied by anxiety, depression and other stressful situations. In addition to the above diseases, other factors can also lead to the symptoms of hair loss in children, it is recommended to consult a doctor in time to identify the cause and ask the doctor to deal with it.