Testosterone is a hormone that is produced by the male testicles and plays a key role in many of the physical and emotional traits that are typically associated with men. Low testosterone levels can be caused by a variety of factors, including aging, obesity, injury or infection of the testicles, and certain medications.
Symptoms of low testosterone can include:
- Decreased sex drive
- Difficulty achieving or maintaining an erection
- Low sperm count
- Increased body fat, and decreased muscle mass.
Clinically low testosterone is defined as a testosterone level that is below the normal range for a man’s age. The normal range for testosterone varies depending on the laboratory that is doing the testing, but in general, a testosterone level of 300 ng/dL or lower is considered low.
If you think you may have low testosterone, it’s important to talk to your doctor. They can order tests to measure your testosterone levels and determine the cause of your low testosterone. Treatment may include testosterone replacement therapy or other medications.