Background and Aims: Spleen is supplied principally by splenic artery. In some spleens, additional arteries supply the superior or inferior pole of the spleen. The presence of such polar arteries in addition to the main splenic artery provides a firm base for the preservation of spleen during partial splenectomy and splenic artery embolization procedures. The aim of the present study is to observe the incidence of inferior polar artery and its origin in adult human spleens.