A throbbing pain in one side of the brain nerve is usually considered to be caused by migraine, tension headache, trigeminal neuralgia and other diseases. 1. Migraine: Usually, it is a throbbing pain on one side of the brain, characterized by recurrent episodes, and each episode lasts for several days. 2. Tension headache: usually caused by long-term stress and mental tension, patients will have a vague dull pain at the top of the head, and there will be pain when they press the head with their hands, which is manifested as a throbbing pain in the brain nerves, and it is often slow in onset, with a long duration of the disease. 3. Trigeminal neuralgia: the pain is obvious when attacking, just like being electrocuted, like tearing pain, manifested as a burst of cerebral nerve pain. If you have symptoms of cerebral nerve twitching, you must go to the hospital as soon as possible for consultation and treatment, and take medication as prescribed by the doctor.