The causes of occipital pain may be tension headache, hypertension, occipital neuralgia, cervical spondylosis and so on. 1. Tension headache: mostly triggered by long-term sleep deprivation and mental tension, causing symptoms such as swelling and tightness in the occipital region. 2. Hypertension: When blood pressure rises or fluctuates, it may cause swelling, pain and tightness in the occipital region. 3. Occipital neuralgia: When a virus infects the occipital nerve, a seizure-like paroxysm of pain may occur in the occipital region. 4. Cervical spondylosis: For example, vertebral artery-type cervical spondylosis can cause insufficient blood supply to the vertebral artery, resulting in pain, dizziness, nausea and other symptoms in the head and occipital area. Occipital pain may also have other causes, such as intracerebral lesions, etc. It is recommended to go to the hospital in a timely manner to identify the cause of the disease and then targeted treatment.