There will be some signs when suffering from brain tumor disease, such as what kind of symptoms appear after the manifestation, it is a sign that you may suffer from this disease, we must carefully observe their own body condition in normal times, so as to find out the brain tumor this kind of disease at an early stage. 1, headache is a very common symptom, cold, high blood pressure, poor rest, emotional and vascular and neurological factors can cause headache. Among the many diseases that cause headache, the most hidden and dangerous one is brain tumor. Most of the headaches in brain tumor patients occur at night and early morning, especially the most obvious pain in the morning, often woken up by pain in the sleep. After getting up and doing light activities, the headache gradually relieves or disappears, so it is called “early morning headache”. 2.When the tumor continues to grow, the pain may turn into local intense, persistent and gradually aggravated, accompanied by projectile vomiting, and the headache symptoms will be aggravated when coughing, sneezing and defecating. Brain tumor often causes mental abnormality, clinically, it is common with emotional apathy, mental retardation, memory loss, sometimes manifested as giggling, language confusion, orientation disorder, lack of self-control. Some brain tumors are misdiagnosed as neurosis in the early stage because of dizziness, headache, insomnia, poor memory and so on. 4, brain tumor patients will also appear progressive vision loss, accompanied by dizziness, headache, and often mistaken for eye fatigue. With the gradual increase of tumor, it can also compress the optic nerve cross, cause optic nerve atrophy, resulting in sudden decrease of visual acuity or even blindness. 5. Since the cause of intracranial tumor is still unclear, there is no way to prevent it, but we should start from the little things around us, such as avoiding contact with toxic and harmful chemicals and radioactive substances, and cultivating healthy living habits.