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What effects do anabolic steroids have in adults? Steroids and Gynecomastia

      In males, excess anabolic steroids are metabolized into female
 sex hormones.(1-4)  This leads to growth of
 the breasts in men, known medically as "gynecomastia" or "man breasts" (2,5,6) 
 While dramatic breast growth does not occur in every case of
 steroid abuse, it is an irreversible side effect.(4,7)  

      Testosterone is produced by the testes at the rate of 4 to 10
 milligrams per day.(8)  When a male takes anabolic steroids,
 the body detects the excess steroids and signals the testes to stop
 producing them.  When they stop producing testosterone, they also
 stop producing live sperm.(2,9)  Long periods of
 anabolic steroid abuse lead to infertility and reduced testicular
 size(4,5,10)  In adult males, the testes begin to
 function again within 6 months after steroids are
 withdrawn.(1,4,11)  It is not known whether anabolic
 steroids have a different effect on testicular function in
 adolescent males.(12)

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REFERENCES 1. Knuth UA, Maniera H, Nieschlag E. Anabolic steroids and semen parameters in bodybuilders. Fertility And Sterility 1989 Dec;52(6):1041-7. 2. Wagner JC. Abuse of drugs used to enhance athletic performance. American Journal Of Hospital Pharmacy 1989 Oct;46:2059-67. 3. Wilson JD. Androgen abuse by athletes. Endocrine Reviews 1988;9(2):181-99. 4. Johnson MD. Steroids. Adolescent Med 1991 Feb;2(1):79-93. 5. Giannini AJ, Miller N, Kocjan DK. Treating steroid abuse - a psychiatric perspective. Clinical Pediatrics 1991 Sep;30(9):538-42. 6. Council on Scientific Affairs. Drug abuse in athletes. J Am Med Assoc 1988 Mar 18;259(11):1703-5. 7. Huang QF, Gebrewold A, Altura BT, Altura BM. Cocaine-induced cerebral vascular damage can be ameliorated by Mg2+ in rat brain. Neurosci Let 1990;109:113-6. 8. Hough DO. Anabolic steroids and ergogenic aids. Am Fam Physician 1990 Apr;41(4):1157-64. 9. Kibble MW, Ross MB. Adverse effects of anabolic steroids in athletes. Clinical Pharmacy 1987 Sep;6:686-92. 10. Creagh TM, Rubin A, Evans DJ. Hepatic tumours induced by anabolic steroids in an athlete. J Clin Pathol 1988;41:441-3. 11. Yesalis CE, Wright JE, Bahrke MS. Epidemiological and policy issues in the measurement of the long term health effects of anabolic-androgenic steroids. Sports Medicine 1989 Sep;8(3):129-38. 12. Buckley WE, Yesalis CE, Friedl KE, Anderson WA, Streit AL, Wright JE. Estimated prevalence of anabolic steroid use among male high school seniors. J Am Med Assoc 1988 Dec 16;260(23):3441-5. by Trent Tschirgi, R. Ph. (c) 1992 University of Maryland Office of Substance Abuse Studies. All Rights Reserved.
Disclaimer: Steroid use is illegal in a vast number of countries around the world. This is not without reason. Steroids should only be used when prescribed by your doctor and under close supervision. Steroid use is not to be taken lightly and we do not in any way endorse or approve of illegal drug use. The information is provided on the same basis as all the other information on this site, as informational/entertainment value.

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