A brain tumor is an abnormal growth of cells inside the brain or surrounding structures. These cells grow in an uncontrolled way and form a mass that can press on healthy brain tissue. Depending on its size and location, a brain tumor can affect thinking, movement, vision, balance, and other important body functions.
Brain tumors can cause different symptoms depending on where they are located. Common warning signs include persistent or worsening headaches (especially in the morning), seizures, weakness in the arms or legs, vision problems, memory issues, personality changes, or difficulty with balance. A sudden, severe headache unlike anything you’ve felt before requires immediate medical attention.
Diagnosis begins with a detailed medical history and neurological examination. Imaging tests such as MRI or CT scans help doctors clearly see the brain and identify any abnormal growth. In some cases, a small tissue sample (biopsy) is taken to understand the exact type of tumor and plan the most appropriate treatment.