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Tumor segmentation from MRI (Magnetic Resonance Imaging) data is an emerging process in medicine but it is time consuming manual task performed by medical experts. Because of the highdiversity in tumor tissue of different patients, automating this process is a challenging riskMedical resonance imaging is a challenging and innovative field in medical science. The brain tumor detection using MRI images has many applications. Brain tumor detection and segmentationfrom MRI images is being one of the emerging fields in the biomedicine. There are different brain tumor detection and segmentation methods. Detection and segmentation methods are used to detect and segment the brain tumor from the MRI images. Here a brief review about the differentbrain tumor detection and segmentation methods has been discussed. The different methods include watershed method, bilateral method, etc.