INTRODUCTION:Pyramidalis is classified as a vestigial muscle which is frequently present. It is muscle of the anterior abdominal wall. It is thought to tense the linea alba. It has been used as a surgical landmark, source of muscle stem cells and in various surgical procedures. AIM:The aim of this study was to recognise  the variations in occurrence & shape of the pyramidalis muscle and its relevance in flap and graft  .MATERIAL AND METHODS:A total of 12 male cadavers from the Anatomy department  were used in this study. Dissection of the lower anterolateral abdominal wall was made to ascertain the presence & shape  of the muscle. There was no case of unilateral occurrence or  supernumerary presence or agenesis and the predominant shape was triangular with no difference in shape on either side.CONCLUSIONS: Our findings suggest that the incidence of agenesis of the pyramidalis muscle  is not common and there are no significant differences in the sizes of the muscle on either side.So,this study provides valuable information on pyramidalis muscle which may help in appropriate understanding of anatomy, functions and clinical significance of the muscle.