When it comes to “headache”, it is common to think that there is something wrong with the “inside of the head”. In fact, a large amount of clinical practice data shows that more than 70% of headaches are inseparable from neuromuscular and soft tissue lesions outside the “brain shell”. Occipital nerve entrapment headache is a typical chronic headache caused by extracranial factors, and it is also a headache that can be cured clinically without long-term medication through regular treatment by the pain department. Due to long-term malposition, cold stimulation and other factors, the posterior occipital intermuscular fascia is congested, exuded and adhered to the local occipital nerve, causing posterior occipital discomfort, headache, dizziness and other symptoms, which is called occipital nerve entrapment headache. Clinical manifestations: numbness and throbbing pain in the posterior occipital region, sometimes involving the top of the head and even the forehead and orbits, a feeling of tightness and pressure, pain in the mastoid process, behind the ear and temporal region on one side, mostly persistent pain, weather changes, prolonged head bowing, emotional tension, cold and other factors will aggravate the symptoms. Diagnostic criteria: 1. History of cervical strain injury with a duration of more than 3 months; 2. Pain and numbness in the occipital region, which can be aggravated by turning the head, shaking the head and coughing; 3. Significant pressure pain at the outlet of the greater occipital nerve, which can be dissipated to the top, frontal and orbital regions. 4.Cervical spine X-ray mostly shows calcification of the collateral ligament and loss of physiological curvature and straightening of the cervical spine. Treatment methods: 1, oral anti-inflammatory and analgesic drug therapy: safe and effective, more economical; but the effect is short-lived and easy to relapse. 2, the occipital nerve block injection: safe and effective, the efficacy of the exact and long maintenance time, relapse can be blocked again after treatment, economic and practical. 3, small needle local fascial release: safety is still possible (the operator needs to master the fine anatomy, otherwise do not use blindly), the efficacy is more accurate, high operational requirements, there are certain complications, the best under ultrasound guidance. 4, cervical 2 dorsal root ganglion pulse radiofrequency: safety can be (need to locate the puncture under ultrasound guidance), the efficacy is exact, not easy to recur, the price is more expensive. Prevention and precautions: 1.Avoid continuous ambulatory work, move the neck and shoulder at the right time. 2.Ensure 10–20 minutes of work break to give the occipital fascia sufficient time to relax. 3, avoid taking a bath before bed, and avoid going to bed with wet hair directly before bed. 4.Relax yourself in moderation when you are emotionally tense.