Normal thyroid physiology is paramount for the proper development and important for
the maintenance of male reproduction. Both short- and long-term deviations in thyroid
hormone levels have been shown to alter male reproductive function on a micro- and
macroscopic level. Thyrotoxicosis and hypothyroidism are associated with changes in
spermatogenesis, semen quality, levels of sexual hormones, and erectile function.
However, the degree to which thyroid dysfunction is clinically responsible for male
infertility has not been clearly elucidated.
Keywords
male infertility - sperm - semen - thyroid - hypothyroidism - hyperthyroidism
