Which of the following can contribute to infertility in a young male body builder taking anabolic steroids?
a. suppression of lh release from the pituitary
b. decreased circulating levels of dihydrotestosterone (dht)
c. increased muscle mass
d. decreased testicular testosterone concentrations
e. b and d

The correct answer is a. suppression of LH release from the pituitary.

Explanation:

Anabolic steroids are synthetic steroids made up of mainly androgenic hormone like testosterone. These anabolic steroids are usually taken by young male bodybuilders because it helps in gaining muscles.

These anabolic steroids have many side effects and infertility in males is one of its side effects. Excessive use of these steroids stops the secretion of gonadotropic hormones such as LH in males from pituitary glands by inducing negative feedback to the pituitary.

LH is important in the production of testosterone from Leydig cells and testosterone is important for sperm production. Therefore if LH is stopped no sperm production will occur and it leads to infertility in males.