A sudden headache like pins and needles must be taken seriously enough, it is likely to be a harbinger of certain diseases and should be promptly seen by the neurology department of the hospital. The following are common causes, i. The most common is migraine, which has a family genetic disorder, recurrent attacks, a moderate to severe throbbing headache, lasting 4-72 hours, and can have photophobia and phonophobia during the attacks. Second, neuralgia in the head, such as occipital neuralgia, large ear neuralgia, and small ear neuralgia, can be manifested as a pins-and-needles, burning, or electric shock-like burst of throbbing pain. Sudden increase of cerebral aneurysm, if the patient suddenly has headache, accompanied by one side of the nerve palsy, such as ptosis, pupil dilatation, it indicates the sudden increase of cerebral aneurysm is about to rupture, cranial magnetic resonance angiography can detect the aneurysm. Fourth, subarachnoid hemorrhage, if the cerebral aneurysm suddenly ruptures, there will be severe headache is a severe headache never experienced in a lifetime, cranial CT can see subarachnoid hemorrhage. V. Cerebral hemorrhage, there will be a sudden headache with or without aphasia and hemiparesis. VI. Herpes zoster infection of the head, which can present with a sudden headache manifestation on one side and a red herpes on the head, i.e., the painful area, about 3 days after the headache.