Finger twitching of brain tumor may be caused by tumor invasion of normal cerebral cortex neuron cells causing abnormal discharges in the damaged area, which may lead to finger twitching, or it may be caused by muscle spasm. Brain tumor includes tumor originating in intracranial tissues and brain metastases, which may cause increased intracranial pressure, manifested as headache, vomiting, optic nerve papillae edema and other symptoms, while brain tumor causing epilepsy is mainly caused by tumor causing the cerebral cortex to produce abnormal discharges, and in the case of petit mal seizures, localized convulsions such as finger twitching will occur. Brain tumor occupancy may cause malignant, vomiting and other symptoms of intracranial hypertension, affecting the patient’s normal appetite, or leading to electrolyte disorders and hypocalcemia. Tumor local occupation may cause limb dysfunction and muscle spasm. Brain tumor needs to go to regular hospitals to actively accept the doctor’s examination and treatment, so as to avoid the development of the condition, even life-threatening.