Blood and Cardiovascular
Skeletal and Muscular
Testosterone is a male steroid hormone produced mainly in the testicles and is important to help maintain bone density, fat distribution, muscle mass, red blood cell count, facial and body hair, sex drive, and sperm production. It may be used as a replacement therapy for men with low testosterone. Testosterone may be used to increase sex drive, improve symptoms of erectile dysfunction, increase sperm count, boost energy, improve mood, increase muscle mass, and improve bone density.