If a patient has pain in the back of the head when he or she lowers the head, consider the following reasons: 1. Consider tension headache, when the patient has improper posture for a long time, resulting in tension and contraction of the head and neck muscles, the patient’s back of the head is mainly characterized by tightness-like soreness or swelling pain. 2. The pain at the back of the head may also be related to cervical spondylosis. 3. If the symptoms of pain at the back of the head persist and worsen when the patient lowers the head, defecates, or sneezes, consider that it is caused by tumors or occupying lesions in the posterior cranial fossa, and timely examination and treatment should be conducted.