Medical science tells that “a brain tumor occurs when the cells inside the brain start growing at an abnormal speed. It forms a mass of abnormal cells in the brain. The enclosed space inside the skull is limited, and when these abnormal cells start closing in the space, the symptoms are observed.”
Over 120 brain tumour have ben detected. Experts say, “All brain cancers are tumors, but not all brain tumors are cancerous. Non-cancerous brain tumors are called benign brain tumors.”