Occupational exposure to toxic levels of lead has potential adverse effects on the reproductive capacity of exposed men in a number of industries. This paper reports a study of occupational lead exposure on endocrine testicular function. Our results have shown that the lead exposure resulted in a subclinical increase both in follicle-stimulating hormone (FSH) and luteinizing hormone (LII) levels. It has been also observed that. there is a positive significant correlation between lead exposure and total serum testosterone concentration (TT) but not free testosterone (FT) concentration. There also appears to be a positive correlation between hormone levels, blood lead concentration, duration of occupational lead exposure and age as numerical but not statistical.