The Aim of the Study Was to Compare the Status of Totalleucocytes Count of Blood In Different Phases of Menstruation Cycle Such Asluteal Phase, Menstrual Phase and Follicular Phase. the Subjects Selected Forthis Study Were Randomly Selected from Track and Field Match Practice Longdistance Runners. the Total No. of 15 Long Distance Female Athlete Wasselected. the Age of the Subject Ranged from 18-25Years. the Investigationabout the Total Leucocytes Count Associated With the Different Phases Ofmenstruation Cycle, Blood Sample (3-5Ml) Was Taken on 2Nd Day (Menstrualphase), 11Th Day (Follicular Phase) and 22Nd Day (Luteal Phase) By the Help Ofreputed and Registered Pathologist and Their Well Trained Technicians. Toanalyze As Changes Associated In Total Leucocytes Count In Blood, Duringluteal, Menstrual and Follicular Phases of Menstrual Cycle Two Way Repeatedmeasures Anova (Within-Within) Was Used at 0.05 Level of Significance. There Issignificant Effect Was Found In the Follicular and Luteal Phase of Mensturalcycle..