Many men yearn for greater muscle mass and strength, and some go to great lengths to achieve an Adonis look or build up their bodies to increase athletic performance—or both. Some men turn to anabolic androgenic steroids (AAS) to attain those results, but the gains can come at a risk and cost to the users.

AAS compounds are considered "anabolic" because they build muscle, and they're referred to as "androgenic" because they increase male sex characteristics, according to the National Institute on Drug Abuse.

But users should be cautious until they know the negative effects of anabolic steroids.

Popular designer AAS substances include bolandiol, clostebol (Steranabol), danazol, drostanolone (Masterone), gestrinone, metandienone (Dianabol), metenolone (Primobolan), oxandrolone (Anavar), oxymetholone (Anadrol), stanozolol (Winstrol), tetrahydrogestrinone (the Clear) and trenbolone (Trenabol), according to an article by Bradley Anawalt, M.D., the chief of medicine at