There are many causes of headaches in children, such as common infectious diseases, migraines, tension headaches and headaches induced by some other factors. 1. Infectious diseases: such as common meningitis, sinusitis, etc., these diseases can induce the appearance of headache. Meningitis is a group of acute inflammatory diseases of the cerebrospinal membrane caused by a variety of pathogens, which can lead to fever, headache, vomiting and neck stiffness and other symptoms; Sinusitis is an inflammatory disease of the mucous membrane of the sinuses, which can lead to nasal congestion, fever and other symptoms, whether it is fever or nasal congestion, can affect the head tissue, thus causing headaches. 2. Migraine: mainly characterized by recurring sudden headache, throbbing headache located on one side of the head, lasting 4-72 hours, and there is no abnormality in the children between attacks, belonging to a kind of migraine headache that can not find the cause, and the main consideration is related to fatigue, bright light stimulation and other factors. 3. Tension headache: the clinical characteristics of the headache site is not sure, the head is a dull pain, no throbbing, headache is located in the top, temporal, frontal and occipital, sometimes the above parts of the pain, the degree of headache is mild or moderate, not due to physical activity and aggravated, often complained of the top of the head pressure and tightness, or the head of the head with a kind of tightening sensation. 4. Other: in addition to the presence of glaucoma, refractive error and other phenomena, can lead to eye fatigue, which affects the brain nerves, inducing headache symptoms. Children may also have other causes of headaches, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.