A brain tumor is a growth of cells in the brain or near it. Brain tumors can happen in the brain tissue. Brain tumors also can happen near the brain tissue. Nearby locations include nerves, the pituitary gland, the pineal gland, and the membranes that cover the surface of the brain.
According to Healthline", Brain tumors range in size from very small to very large. Some brain tumors are found when they are very small because they cause symptoms that you notice right away. Here are the signs that show you have brain cancer.
Headache or pressure in the head that is worse in the morning.
Headaches that happen more often and seem more severe.
Headaches are sometimes described as tension headaches or migraines.
Nausea or vomiting.
Eye problems, such as blurry vision, seeing double, or losing sight on the sides of your vision.
Brain tumors that aren't cancerous tend to cause symptoms that develop slowly. Noncancerous brain tumors also are called benign brain tumors. They might cause subtle symptoms that you don't notice at first. The symptoms might get worse over months or years.