Headache on both sides of the head may be caused by migraine, tension headache, cervical spondylosis and other factors. 1. Migraine: heredity, lack of sleep and excessive fatigue can trigger migraine, and most migraine patients have unilateral headaches, while a small number of patients have bilateral headaches. Most of the migraine patients have unilateral headache, and a few of them have bilateral headache. The headache may be accompanied by dizziness, blurred vision and other symptoms. 2. Tension headache: common in young and middle-aged people, the cause is unknown or caused by mental and psychological factors, manifested as bilateral occipital or whole head tightness or pressure headache. 3. Cervical spondylosis: Cervical spondylosis can be triggered by prolonged bowing of the head, injury to the cervical vertebrae, or cervical vertebrae deformity. Cervical spondylosis may affect the sympathetic nerve function of the cervical vertebrae, resulting in headaches, mainly in the occipital region, on one side or both sides of the head, and the headache symptoms may recur with the development of the disease. Patients are advised to adjust their life schedule, maintain sufficient sleep, exercise moderately and soothe their mood. If the symptoms of headache are more serious, they should go to the hospital in time to avoid delaying the condition.