A headache at the back of the head is mainly due to the following reasons: First, the patient should be asked whether the neck is in a long time posture or incorrect neck posture causes cervical spondylosis and headache, which is manifested as pain at the back of the head when turning the head. At the same time, there is also tension in the neck muscles and restricted activity accompanied by bilateral shoulder or occipital pain, which is mostly related to improper neck posture and muscle tension headache caused by cold in the neck muscles. Second, it is also related to the neuralgia caused by the cervical spine compression nerve, which can also be manifested as pain at the back of the head when the head is turned, so the pain at the back of the head when the head is turned is mainly due to the above two reasons.