Reasons for Low Testosterone
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Aging
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Aging is a major reason for low testosterone. Levels of the male hormone naturally decrease over time.
Damage
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Trauma to the testicles can cause low testosterone. Accidents, cancer or chemotherapy may damage the testes.
Medications
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Medications such as morphine and steroids may affect the production of testosterone, causing low levels.
Diseases
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Some diseases, particularly genetic disorders such as Klinefelter's Syndrome, cause low testosterone.
Warning
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While a decreased interest in sex is normal as men age and testosterone levels decline, the total absence of libido is not normal. You should seek diagnosis and treatment in this situation.
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