There are many reasons for the pain in the left back of the head like pulling nerves, often considered due to physiological factors and pathological factors, the specific analysis is as follows: a. Physiological factors when patients stay up late for a long time, lack of sleep, mental stress and excessive tension, may cause a burst of pain in the left back of the head, the symptoms usually do not last too long, can be done without any special treatment, usually It can be relieved after getting sufficient rest. Pathological factors 1, occipital neuralgia: Mostly due to cervical spondylosis or other abnormalities in the neck, resulting in the occipital nerve being stimulated by pressure when exiting the spinal canal, and causing painful symptoms in patients. The clinical treatment of such patients adopts nerve block therapy or nerve root amputation, and non-steroidal anti-inflammatory drugs and muscle relaxants may also have auxiliary therapeutic effects. 2. Migraine: It is often recurrent, and is common in young and female patients, and can be triggered by hormone metabolism disorders and abnormal nerve cell excitability, diet or work stress. Pharmacological treatment uses non-specific painkillers, such as non-steroidal anti-inflammatory drugs, and also treptans, which can be adjusted according to the degree of headache. If triggered by daily stress and other factors, psychotherapy can be performed to relieve it. Note: If the occasional pain in the left back of the head occurs due to recent work stress and strain, adjust your work and rest routine and it will generally be relieved after rest without too much worry. However, if you feel pain on a regular basis, it is recommended that you seek medical advice to identify the cause and give targeted treatment to avoid aggravation of the condition.