[Male hormonal profile in workers exposed to toluene in an industrial packaging plant].

Objective: to identify changes in the male hormonal profile (MHP), consisting of luteinizing hormone (LH), follicle-stimulating hormone (FSH) and testosterone, in workers exposed to toluene.

Methods: cross-sectional study that included 42 workers, formed in two groups: with high and low exposure to toluene (HET and LET, respectively); the hippuric acid in urine, and the serum concentration in FSH, LH, and testosterone were measured.

Results: hippuric acid in subjects with LET was 2.