In this paper, the brief reviews of the significance of the myelin thickness to various root courses of the diseases for a human being, and the similarities between the human and the lab mouse being researched extensively so far are presented. Once we establish the necessity for a biological statistical analysis of the myelin thickness with regard to the particular category of the brain cell, we can then develop a mixed algorithm based on the watershed principle and the binaryzation principle that can be used to automatically process the scanning electron microscope pictures in batches. The initial analysis does indicate that the mixed method improved efficiency of data processing while not overlooking some important medical diagnostic factors.