Brain tumor does not exist the simplest way to judge, usually through clinical symptoms, head CT or nuclear magnetic examination, pathological examination and other comprehensive judgment. 1. Clinical symptoms: such as long-term headache, head discomfort, etc., most of them are mainly swelling and pain, and they are persistent and sometimes aggravated, and there may also be numbness and weakness of limbs, speech dysfunction, epileptic convulsions and other symptoms. But some brain diseases will have similar symptoms, such as neurasthenia, migraine, cerebrovascular type of disease, then need to be identified. 2. Head CT or magnetic resonance imaging (MRI): Most of the tumors may show abnormal signals on head CT or MRI, and the examination and results are fast. If necessary, enhancement can also be done to assist in determining the benign or malignant nature of the tumor. 3. Pathological examination: To diagnose brain tumor and clarify its nature, ultimately pathological examination is needed. When brain tumor is suspected, it should be judged by clinical symptoms, CT and other imaging examinations and pathological results, and it is recommended to go to neurosurgery or neurology for consultation.