The question of toxicity to the gonads: testes and ovaries is a point of concern for all those who work with infertility. This toxicity is determined by any chemical agent, physical or biological agent that can alter the endocrine system or spermatogenesis, causing changes in reproductive physiology. The interruption of the normal biological process may occur by direct action of the agent, or indirectly through their metabolites. In addition to these, factors such as stress, age and weight shoul