A brain tumor is a collection, or mass, of abnormal cells in your brain. Your skull, which encloses your brain, is very rigid. Any growth inside such a restricted space can cause problems.

Brain tumors can be cancerous (malignant) or noncancerous (benign). When benign or malignant tumors grow, they can cause the pressure inside your skull to increase. This can cause brain damage, and it can be life-threatening.

Risk factors for brain tumors include; Family history, Age, Chemical exposure, Exposure to radiation, No history of chickenpox 

Symptoms of A Brain Tumor

Headaches are a common symptom of a brain tumor. You may experience headaches that: 1. are worse in the morning when waking up 2. occur while you’re sleeping 3. are made worse by coughing, sneezing, or exercise

Symptoms you may also experience: Vomiting, blurred vision or double vision, confusion, weakness of a limb or part of the face, a change in mental functioning

Symptoms of pituitary tumors include; nipple discharge, or galactorrhea, lack of menstruation in women, development of breast tissue in men, enlargement of the hands and feet, increased amounts of body hair or hirsutism