Around 23,800 adults in the united states are diagnosed with a primary brain tumor every year. The most common type of brain cancers are primary brain tumors. Primary brain tumors differentiate based on the tissue type they stem from. The most common type of primary brain tumor is a glioma, arising from glial cells. Types of common gliomas include Astrocytomas, Oligodendrocytes, and Ependymomas. Secondary tumors are brain tumors that are the result of a previous cancer spreading to the brain. Treatment for brain cancer depends on the size, location, and grade of the tumor. Standard treatments include surgery, radiation, and chemotherapy. New research has produced a greater understanding of different types of brain tumors and lead to better outcomes. Clinical trails have also become a viable option when standard treatment fails.