A brain tumor is an abnormal growth of cells in the brain or surrounding tissues. Brain tumors can be either benign (non-cancerous) or malignant (cancerous). Benign tumors typically grow slowly and are less likely to invade surrounding brain tissue, while malignant tumors can grow rapidly and invade nearby areas, causing significant damage and potentially spreading to other parts of the body. Symptoms of a brain tumor can vary depending on its size, location, and growth rate, and may include headaches, seizures, changes in vision, difficulty speaking, and alterations in mood or personality. Treatment options depend on the type and stage of the tumor, as well as the patient's overall health, and may include surgery, radiation therapy, chemotherapy, or targeted therapies. Early detection and treatment are critical to managing a brain tumor and improving the patient's prognosis and quality of life.