Early symptoms of brain cancer

Brain cancer is a malignant tumor that grows in the cranial cavity, also known as an intracranial tumor. It originates from the brain, meninges, nerves, blood vessels and brain appendages, or is formed by the metastasis of other tissues or organs in the body and invades the brain. Most of them can cause headaches, intracranial hypertension and focal symptoms. The early signs of brain cancer mainly include: morning headaches, visual impairment, projectile vomiting, mental abnormalities, olfactory hallucinations, etc.

1. Morning headache: Headache is a common symptom of brain cancer, often occurring at four or five in the morning. People are often awakened by the pain while sleeping. The headache gradually eases or disappears after getting up and doing some light activities, so it is called "morning headache". Tumors in the posterior cranial fossa can cause neck pain that radiates to the eye sockets, and the severity of the headache gradually increases as the disease progresses.

2. Visual impairment: Increased intracranial pressure can cause venous blood in the eye to flow back to the brain and cause edema, leading to decreased vision. In severe cases, there are punctate, linear, or flaky lesions or even bleeding in the retina of the fundus, causing blurred vision.

3. Mental abnormalities: Brain tumors located in the frontal lobe of the brain can destroy the mental activities of the frontal lobe, causing mental abnormalities such as excitement, agitation, depression, and depression.