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    Glossary Testis

    organ producing sperm and testosterone in male mammals

    The testis, also known as the testicle or male gonad, is an organ found in male mammals that produces sperm and testosterone, the primary male sex hormone. Located in the scrotum, the testes play a crucial role in male fertility and secondary sexual characteristics, such as muscle mass and body hair growth.

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    1. Should I avoid a testosterone cycle if I care a lot about keeping my hair? Reddit · 23 Aug 2026
    2. How does testosterone and dht work? Reddit · 18 Aug 2026
    3. Anyone already balding before their first testosterone cycle - did Finasteride/Dutasteride or RU58841 actually save your hair? Reddit · 31 Jul 2026
    4. Impact of Testosterone on Hair Loss with Dutasteride Treatment at Norwood 3 Community · 16 Jul 2026
    5. If you discontinued anabolic steroids (mainly Testosterone) while on Dut, would you restart seeing results? Reddit · 13 Jul 2026
    6. My DHT levels on 1400mg testosterone per week and 0.5mg dutasteride daily Reddit · 30 Jun 2026
    7. Testosterone increased after six months of finasteride Reddit · 16 Jun 2026
    8. High testosteron on dutasteride Reddit · 9 Jun 2026
    9. DIY Testosterone replacement therapy and fin Reddit · 18 May 2026
    10. Testicular ultrasound is it necessary to do? Reddit · 11 May 2026
    11. Hair regrow idea: High dose Testosterone + RU58841 Reddit · 3 May 2026
    12. Detransitioning, questions about hair loss prevention while body ramps back up testosterone production Reddit · 3 May 2026
    13. Do creatine increase testosterone and dht? Reddit · 15 Apr 2026
    14. Finasteride In my 30s for 8 years. Off it till 50 years old. Now on testosterone. Reddit · 7 Apr 2026
    15. Ferritin, iron and testosterone Reddit · 1 Apr 2026
    16. Can testosterone alone cause hair loss even after nuking DHT? Reddit · 27 Jan 2026
    17. Should I Start Finasteride at 322 ng/dL Testosterone in Mid-Twenties with Norwood 3? Community · 23 Jan 2026
    18. Testing recommendations from lack of min/fin success Reddit · 27 Dec 2025
    19. Very high testosterone and estradiol on finasterid 1 mg. Am I cooked? Reddit · 13 Dec 2025
    20. Finasteride doubled my testosterone & estrogen Reddit · 8 Nov 2025
    21. Result of my cortisol, prolactin, testosterone, ACTH blood test, Reddit · 2 Nov 2025
    22. These are my blood tests and im on fin 0.625mg MWF Reddit · 25 Oct 2025
    23. Testosterone and Estradiol levels on 1 mg/day dutasteride Reddit · 10 Oct 2025
    24. Anti-androgen use causing testicular pain? Reddit · 5 Aug 2025
    25. Low Testosterone after taking finastreide Community · 26 Jun 2025
    26. Testosterone's Role In Androgenetic Alopecia Reddit · 12 Jun 2025
    27. Hypothetically, if estradiol has been a "cure" for hair loss, could one apply estradiol topically and just take an estrogen blocker and/or testosterone to offset the systematic effects? Reddit · 6 Apr 2025
    28. High testosterone on 4 months dut, rapidly receding but no actually shed Reddit · 6 Apr 2025
    29. Should i seek further blood tests given my levels? Community · 3 Mar 2025
    30. 2.5mg Dut/RU/minoxidil can't counter 15mg Testosterone.. Reddit · 12 Feb 2025