Brain tumor is the popular name for intracranial tumors, which are tumors of the nervous system that occur in the cranial cavity. Brain tumor may cause headache and vomiting, epileptic seizure, neurological dysfunction and other manifestations. 1. Headache and vomiting: when suffering from brain tumor, due to the compression of tumor on the surrounding tissues, causing increased intracranial pressure, the patient manifests the symptoms of severe headache and vomiting. And the pain, which lasts for a longer time. 2. Epileptic seizure: patients with brain tumor may have symptoms of epileptic seizure, due to the tumor stimulating the cortex and short-circuiting the cortex, which manifests as body convulsions, clenched teeth, foaming at the mouth and other symptoms. 3. Neurological dysfunction: if the brain tumor grows in the functional area of brain, it may lead to neurological dysfunction, which manifests as numbness and weakness of limbs, abnormal walking posture, decreased balance stability and other symptoms. If the above symptoms appear, you should go to the hospital in time for a clear examination, and actively treat under the guidance of the doctor to control the development of the disease.