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  1. Testosterone therapy: Potential benefits and risks as you age

    Jan 19, 2024 · Testosterone levels generally peak during adolescence and early adulthood. As you age, your testosterone level gradually declines — typically about 1% a year after age 30 …

  2. Male hypogonadism - Symptoms & causes - Mayo Clinic

    Sep 20, 2024 · Male hypogonadism is a condition in which the body doesn't make enough of the hormone testosterone or enough sperm or both. Testosterone plays a key role in male growth …

  3. Male hypogonadism - Diagnosis & treatment - Mayo Clinic

    Sep 20, 2024 · Treatment Adults Testosterone replacement can raise testosterone levels and help ease the symptoms of male hypogonadism. These include less desire for sex, less …

  4. Testosterone and prostate cancer: What's the connection?

    Oct 29, 2025 · But many prostate cancers are sensitive to testosterone, meaning that testosterone can help cancer cells grow and multiply. For many years, people believed there …

  5. Male menopause: Myth or reality? - Mayo Clinic

    Mar 26, 2025 · The term "male menopause" has been used to describe decreasing testosterone levels related to aging. But aging-related hormone changes differ between women and men. In …

  6. Testosterone (intramuscular route, subcutaneous route) - Mayo …

    Description Testosterone injection is used for the treatment of men whose bodies do not make enough natural testosterone, a condition called hypogonadism. Testosterone is a male …

  7. PSA test - Mayo Clinic

    Apr 30, 2025 · The PSA test is a blood test used primarily to screen for prostate cancer. The test measures the amount of prostate-specific antigen (PSA) in your blood. PSA is a protein …

  8. Testosterone (topical application route) - Mayo Clinic

    Sep 1, 2025 · Description Testosterone topical gel is used to treat males whose bodies do not make enough natural testosterone, a condition called hypogonadism. Testosterone is a male …

  9. Testosterone (oral route) - Side effects & dosage - Mayo Clinic

    Sep 1, 2025 · For low testosterone levels: For oral dosage form (Jatenzo® capsules): Adults—Dose is based on the testosterone concentration level in your blood and must be …

  10. Klinefelter syndrome - Symptoms and causes - Mayo Clinic

    Oct 29, 2024 · Klinefelter syndrome may affect testicular growth. This results in smaller testicles, which can lead to making less of the hormone testosterone. The syndrome also may cause …