The left side of the head a jump a pain may be caused by the following reasons: 1, neurological headache, the left side of the head a jump a pain may be the trigeminal nerve, occipital nerve and other causes of pain, pain is often associated with mental stress, fatigue, did not have a good rest, as well as the emergence of infectious diseases, the pain can be examined through the hospital to identify the causes of the symptomatic treatment. 2, the left side of the head a jump a pain may also be due to cerebral vasospasm Cerebrovascular spasm can lead to pain on one side of the head, the pain will not last long, with the lifting of the cerebrovascular spasm pain will be relieved, the pain is often associated with cerebrovascular lesions as well as the patient’s fatigue, insufficient blood supply to the brain, etc. 3, the left side of the head with a throbbing pain may also suffer from some kind of disease, such as cerebral hypoperfusion, arrhythmia, etc. lead to insufficient blood supply to the brain, which can lead to throbbing pain in the brain. cause throbbing pain in the brain.