Brain and spinal cord tumors are irregular development of tissue found inside the skull or the bony spinal column, which are the most important components of the central nervous system (CNS). Benign tumors are noncancerous, and malignant tumors are cancerous. The CNS is housed within rigid, bony, so any irregular growth, whether benign or malignant, can situate pressure on receptive tissues and impair function. Tumors that make in the brain or spinal cord are called primary tumors. Most primary tumors are caused by uncontrollable growth between cells that surround and support neurons. In a small number of individuals, primary tumors can outcome from particular genetic disease (e.g., neurofibromatosis, tuberous sclerosis) or from revelation to radiation or cancer-causing chemicals. The reason of most primary tumors remains a mystery. They are not infectious and, at this time, not preventable. Sign of brain tumors contain headaches, seizures, nausea and vomiting, vision or hearing problems, behavioral and cognitive troubles, motor problems, and balance problems. Spinal cord tumor sign contain pain, sensory changes, and motor harms. The first test to diagnose brain and spinal column tumors is a neurological test. Special imaging system (computed tomography, and magnetic resonance imaging, positron emission tomography) are as well employed. Laboratory tests comprise the EEG and the spinal tap. A biopsy, a surgical process in which a sample of tissue is taken from a supposed tumor, helps doctors diagnose the kind of tumor.