The brain is the main part of our central nervous system and the main regulator of vital functions, which is crucial to the maintenance of human life. When many patients hear that they have brain tumor, they think they have been given a death notice, and their accompanying family members are mostly crying, and the scene is as tragic as a parting from life and death! However, is brain tumor really that terrible? Many people regard tumor as “death”, especially when they know the importance of brain to human, they are more afraid of brain tumor. In fact, brain tumors are not necessarily more life-threatening than tumors in other parts of the body. Under the existing medical conditions, most brain tumors can be effectively treated, especially some benign brain tumors, which can be completely cured. Benign brain tumors mainly include: meningioma, nerve sheath tumor, and pituitary tumor. Benign intracranial tumors are slow growing and most of them can be cured. Malignant intracranial tumors mainly include glioma, germ cell tumors and metastases, etc. Malignant tumors grow rapidly and are difficult to be cured. However, this is not absolute, some benign tumors are already very large when they are found due to their deep growth location, so surgery cannot remove them all. Some malignant tumors, however, can be almost completely removed or even cured by surgery because they grow in less important brain tissues. Even if they cannot be cured, the survival years of malignant brain tumor patients are greatly improved, and patients who survive for several years or even more than ten years can be seen now. What are the clinical manifestations of brain tumor? 1. Headache: Headache is the earliest and most common symptom of brain tumor, which is seen in 82%~90% of patients, and the degree varies from person to person. It is intermittent at first, more frequent and heavier in the morning when awake and in the evening. It worsens with the development of tumor and turns into persistent headache. In children, because the skull is not closed and the cranial sutures are separated when the cranial pressure is increased, there may be no headache and only dizziness is complained. The headache is often treated with general analgesics, but the effect of dehydrating agents is obvious. 2. Vomiting: It occurs in about 2/3 of patients. It is common in severe headache, mostly accompanied by nausea, and vomiting is often jet-like. Severe cases cannot eat and vomit immediately after eating. Patients can often become severely dehydrated and lose weight as a result. 3. Optic papilledema: Optic papilledema is the most important objective sign of increased intracranial pressure. Optic papilledema does not affect visual acuity in the early stage, and the physiological blind spot is enlarged on visual field examination. When the optic papillar edema persists for several weeks or months, visual acuity begins to diminish. Once paroxysmal black haze occurs, vision will rapidly decline and even blindness will soon occur. At this time, even if the intracranial hypertension is surgically lifted, vision often cannot be improved. 4.Seizures: Some brain tumors stimulate brain tissue leading to seizures. 5.Mental disorders: mainly manifested as memory loss, slow reaction, lazy life and intellectual decline, etc. 6.Language disorder: brain tumor invades the language area of the brain, which may lead to inability to speak fluently or understand words. Other symptoms: other symptoms include motor and sensory disorders, endocrine dysfunction, unilateral tinnitus, hearing loss, unstable walking, sudden collapse, blurred consciousness, coma, urinary and fecal incontinence, etc. Brain tumor is not an incurable disease, so there is no need to be discouraged because of brain tumor, but to actively cooperate with the doctor’s treatment is the safest way to fight against tumor.