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Low Testosterone and Men’s Health

Testosterone is the most important sex hormone that men have. It is responsible for the typical male characteristics and helps maintain sex drive; sperm production; facial, pubic, and body hair; muscle; and bone. The brain and pituitary gland (a small gland at the base of the brain) control the production of testosterone by the testes.

In the short term, low testoterone (also called hypogonadism) can cause:

• A drop in sex drive
• Poor erections
• Low sperm count
• Enlarged breasts

Over time, low testosterone may cause a man to lose body hair; lose muscle bulk and strength; accumulate body fat; and have weaker bones (osteoporosis), mood changes, less energy, and smaller testes. Symptoms vary from person to person.

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The Hormone Foundation

Dr. Lysette Iglesias M.D.

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