Can my husband's rapid leaner progression sperm count 0%, (sluggish count is normal) effect in infertility? what are recommended drugs for that?

Sperm count: The lower the sperm count the less the chance that a sperm will fertilize the egg. Causes of a low sperm count include physical abnormalities such as a varicocele which can be corrected, infections of the reproductive tract, hormonal problems, retrograde ejaculation and primary hypogonadism. Treatments include surgery, hormones, surgical removal of sperm. He needs a workup.