Brain is a very complex and important organ, the symptoms and signs of brain tumor vary from patient to patient, which is related to the size, nature and location of the tumor, summarizing the following 10 early signs of brain tumor; 1. 2.Vomiting: Due to the increase of intracranial pressure, the medulla oblongata respiratory center is stimulated, so vomiting occurs, mostly after the headache, in the form of jets. 3, vision loss: the increase in intracranial pressure will make the eye venous blood reflux is poor, resulting in bruising edema, damage to the retinal visual cells in the fundus, resulting in vision loss. 4. Mental abnormalities: Brain tumors located in the frontal lobe of the brain can destroy the mental activities of the frontal lobe, causing excitement, agitation, depression, repression, forgetfulness, fiction and other mental abnormalities. 5.Epileptic seizures. 6.Sensory and motor abnormalities of one or unilateral limb: The parietal lobe located in the middle of cerebral hemisphere is specialized in sensation. 7.Phantom smell: tumor in the temporal lobe can cause phantom smell under its stimulation, i.e. smell an odor that does not exist, such as burnt rice or burnt rubber. 8.Heparesis or drunken gait: Cerebellar lesions are more specific, that is, patients often have hemiparesis or staggering drunken gait after headache, vomiting and visual impairment. 9. Tinnitus and deafness: This is usually found when talking on the phone, i.e., one ear can hear but the other cannot. This is a precursor to auditory neuroma. 10.Gigantism or dwarfism: Gigantism is mostly seen in pituitary tumors. It is characterized by rapid growth and acromegaly (large chin, large nose, enlarged lips and tongue, and abnormally large hands and feet). Dwarfism is commonly associated with craniopharyngioma. The clinical manifestation is that the body is only five or six years old at the age of 15 or 16, the sexual characteristics are not developed, and the belly is full of fat, which looks like the trend of “teenage fat”.