Brain tumor segmentation is the vital requirement on preplanning of surgical treatments that may aid the pathologists to accomplish successful surgical operations on the human brain. In present days brain tumor surgical operations are progressed in the manual approach on hospitals that intakes excess time. Manual brain tumor segmentation is tedious and much depends on the individual operator that may not an advisable one. The literature on brain tumor segmentation consists of many papers related to tumor detection. This paper is a review paper to analyze the recent five papers related to human brain tumor segmentation. This paper analyzes them invariant potential ways to help green researchers to find their research area.