what is normal testosterone for an 80 year-old man

For an 80-year-old man, "normal" testosterone levels are generally lower than for younger men due to natural aging, but clinical guidelines still often use adult reference ranges.

Typical Reference Ranges:

Total Testosterone: Most laboratories define the normal range for adult men as approximately 250 to 1,000 ng/dL (nanograms per deciliter) or 8.7 to 29 nmol/L  

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Age-Specific Expectations: While standard lab ranges often apply to all adult men, testosterone levels naturally decline by about 1% per year after age 30, with a more noticeable drop after age 80 

. Consequently, an 80-year-old might naturally fall toward the lower end of this spectrum. Some studies suggest that by age 80, up to 50% of men may have levels significantly below those of young adults

.Symptomatic Thresholds: Clinicians often look at symptoms alongside numbers. Levels below 300 ng/dL (10.4 nmol) are frequently considered the threshold for potential low testosterone (hypogonadism) if accompanied by symptoms like low libido, erectile dysfunction, fatigue, or loss of muscle mass 

. Levels between 300–350 ng/dL may be treated if symptoms are present, while levels above 350–400 ng/dL typically do not require treatment unless specific clinical signs exist 

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Key Considerations for an 80-Year-Old:

Symptoms Matter More Than Numbers: A level of 280 ng/dL in an 80-year-old with no symptoms is often considered a normal part of aging and may not require treatment. Conversely, a level of 320 ng/dL with significant symptoms might warrant a closer look 

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Free Testosterone: As men age, levels of Sex Hormone Binding Globulin (SHBG) often increase, which can bind up testosterone and leave less "free" (active) testosterone available. Therefore, a normal total testosterone level might mask a low free testosterone level 

Halth Context: Conditions common in older age, such as obesity, diabetes, and chronic illness, can further suppress testosterone levels 

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If you or someone you know is concerned about levels, it is best to consult a doctor who can interpret lab results in the context of overall health and specific symptoms.

  (I will ask my nurse about mine.)