Intracranial tumors are commonly referred to as brain tumors, including primary brain tumors that occur in the brain parenchyma and secondary brain tumors that metastasize to the skull from other parts of the body. The cause of brain tumor is still unknown, and it can occur at any age, with 20-50 years old being the most common. The following are the ten common early symptoms of brain tumor: 1. Headache, nausea and vomiting: Most of the brain tumor patients have headache, which usually occurs at night and early in the morning, especially the pain is most obvious in the morning. The headache usually occurs at night and early morning, especially in the morning. The headache is aggravated when coughing, sneezing or defecating. The vomiting is usually jet vomiting, and the headache is slightly relieved after vomiting, and this vomiting is usually not related to diet. 2.Hemiparesis: It is manifested as weakness or paralysis of one half of the body or a single limb. 3. Hemiplegic sensory disorder: It is manifested as numbness of one limb, hyperalgesia and hyperalgesia, abnormal sensation, and impairment of position, two-point discrimination, graphic sensation, texture sensation and solid sensation. 4.Decreased language function: loss of language expression ability or inability to understand language. 5.Intellectual and mental changes: become sluggish, lazy, recent memory loss or even loss, serious loss of orientation and judgment, or appear irritable, easily agitated, indifferent, etc. 6. Seizures: including generalized seizures and limited seizures. 7, vision changes: progressive vision loss of unknown cause, visual field changes. 8, endocrine disorders: women appear menstrual disorders, infertility, lactation, etc., men appear sexual dysfunction, mainly manifested as decreased libido, impotence, etc., some patients appear obesity, acromegaly, facial changes, gigantism, etc. 9, hearing loss: patients usually show tinnitus, hearing loss or even hearing loss. 10.Symptoms of cerebellum and brainstem: mainly manifested as ataxia, unstable walking, staggering gait, hoarseness, choking on drinking water and difficulty in swallowing, etc. There are various early symptoms of brain tumor, and brain tumor cannot be diagnosed by individual symptoms and signs alone. When the above symptoms appear, you should go to a regular hospital as soon as possible for CT, MRI plain and enhanced scans of the head, so that brain tumors can be detected and treated early to obtain the best treatment results.