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What is low testosterone?

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Quick Answer

Low testosterone is any measurement that falls below 300 nanograms per deciliter, according to Healthline. The condition occurs gradually as men enter old age and results in a decreased libido, hair loss, depression, weight gain, fatigue, irritability, decreased bone density and shrinking muscles.

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Full Answer

Many of the symptoms common to low testosterone are also indicative of a thyroid imbalance, explains WebMD. Men who have yet to reach middle or old age and are experiencing moodiness and lack of sex drive should see their doctor to have their thyroid levels checked and rule out any additional underlying health concerns, such as depression, diabetes, heart disease, testicular cancer, liver or kidney disease, obesity, and high blood pressure. It is also possible for testosterone levels to temporarily drop after a man sustains and injury to his testicles, according to WebMD.

A simple blood test is the best way to get to the root of many of the symptoms associated with low testosterone. Depending on a man's age and the cause of his low testosterone levels, a doctor may suggest hormone replacement therapy in the form of an injection, daily gel or patch. These treatments can help men return to normal functioning and are especially important for older men who are concerned about managing changes to their bone density, WebMD explains.

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