INTRODUCTION: INFERTILITY IS DEFINED AS THE INABILITY TO CONCEIVE AFTER FREQUENT AND UNPROTECTED SEXUAL INTERCOURSE FOR MORE THAN A YEAR, A CONDITION THAT CURRENTLY AFFECTS 15% OF COUPLES WORLDWIDE.APPROXIMATELY 50% OF THE CASES ARE MALE INFERTILITY. PATHOPHYSIOLOGICAL CONDITIONS (E.G. VARICOCELE AND UROGENITAL INFECTION) ARE DIRECTLY LINKED TO ONLY 23% OF ALL MALE INFERTILITY CASES, WITH ENVIRONMENTAL FACTORS, SUCH AS EXPOSURE TO ENVIRONMENTAL TOXICANTS, BEING ONE OF THE MAJOR CAUSES OF THE REMAINING CASES MALE INFERTILITY CAUSED BY EXPOSURE TO ENVIRONMENTAL TOXICANTS, SUCH AS CADMIUM, MERCURY, BISPHENOL A (BPA) AND DIOXIN, IS A GLOBAL PROBLEM, PARTICULARLY IN INDUSTRIALIZED COUNTRIE.IN THIS REVIEW DISCUSS ABOUT INVESTIGATION OF EFFECT ON ENVIRONMENTAL TOXICANTS ON MALE INFERTILITY...