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  2. What Is Low Testosterone & What Causes It? - AOL

    www.aol.com/low-testosterone-causes-125700734.html

    They may also run a number of blood tests before diagnosing low testosterone. These tests include: A total testosterone test. This test measures your protein-bound and unbound (free) testosterone ...

  3. Hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Hypogonadism

    [9] [10] Normal total testosterone levels depend on the man's age but generally range from 240 to 950 ng/dL (nanograms per deciliter) or 8.3–32.9 nmol/L (nanomoles per liter). [11] According to American Urological Association, the diagnosis of low testosterone can be supported when the total testosterone level is below 300 ng/dl. [12]

  4. Autoimmune polyendocrine syndrome type 2 - Wikipedia

    en.wikipedia.org/wiki/Autoimmune_polyendocrine...

    [1] [10] Should any affected organs show chronic inflammatory infiltrate ( lymphocytes ), this would be an indication. Moreover, autoantibodies reacting to specific antigens is common, in the immune system of an affected individual.

  5. 17β-Hydroxysteroid dehydrogenase III deficiency - Wikipedia

    en.wikipedia.org/wiki/17β-Hydroxysteroid...

    Biochemical effects of 17β-hydroxysteroid deficiency-3 in testosterone biosynthesis. Typically levels of androstenedione are significantly increased, whilst testosterone levels are decreased, leading to male undervirilization. Symptoms: Hypothyroidism, Cryptorchidism [2] Causes: Mutations found in the 17β-HSD III gene [3] Diagnostic method

  6. 8 major factors that cause low testosterone levels - AOL

    www.aol.com/lifestyle/8-major-factors-cause-low...

    You're considered to have a testosterone deficiency or low testosterone (also known as low-T) when your levels are less than 300 nanograms per deciliter (ng/dL), according to AUA; other guidelines ...

  7. Kallmann syndrome - Wikipedia

    en.wikipedia.org/wiki/Kallmann_syndrome

    Oestrogen (females) or testosterone (males) is essential for maintaining bone density. [22] Deficiency in either testosterone or oestrogen can increase the rate of bone resorption while at the same time slowing down the rate of bone formation. Overall this can lead to weakened, fragile bones which have a higher tendency to fracture. [citation ...

  8. 13 sneaky signs your testosterone is too low

    www.aol.com/13-sneaky-signs-testosterone-too...

    Hone Health reports that if your levels of testosterone drop below 300 ng/dL and you experience unpleasant signs of low testosterone, you officially have a medical condition known as testosterone ...

  9. Hypogonadotropic hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Hypogonadotropic_hypogonadism

    In the male, hCG stimulates Leydig cells to produce testosterone so that plasma and testicular levels increase. With the increased levels of testosterone, sexual activity, libido and overall wellbeing should improve. [1] Administration of FSH is required to induce spermatogenesis by acting on Sertoli cells.