A brain tumor is a collection of abnormal cells in the brain. Any abnormal growth inside the skull can cause pressure to the brain and cause brain damage; it can be cancerous and life-threatening. Hearing abnormality. Obstructive communication. Balancing problem.

According to World Health Organization (WHO), 10% or 5.5 million of deaths worldwide is caused by Stroke. So far, it is one of the highest percentages among the leading diseases in the world.