Neurosurgery is the surgical specialty concerned with the prevention, diagnosis, treatment and rehabilitation of disorders that affect the entire nervous system including the spinal column, spinal cord, brain and peripheral nerves. Surgery may be necessary to treat disorders of the brain and spine, which may include congenital defects, trauma and stroke, neurosurgery in thrissur degenerative diseases, tumors, and cerebrovascular disorders such as aneurysms of the brain and clogged arteries in the neck that can lead to strokes.