Hi! Welcome to HCM! These are misused of drugs by athletes to enhance performance actually banned for the athletes! These are the most widely detected performance enhancing drugs in sports called as doping. They increase lean body mass but at high doses (100 times the therapeutic dose) to have the performance enhancing action but at the cost of harmful side effects like- Muscle ruptures & Strains due to stronger muscles. Premature closure of the epiphyses limiting their growth potential in teenagers Acne & decreased libido in both the sexes Menstrual irregularities, Hirsutism, Deepening of voice in women, Testicular atrophy, decreased spermatogenesis, Impotence, Gynecomastia, & Prostatic enlargement in men Increased level of cholesterol and risk of Thromboembolism and heart attack. I hope you got the detailed explanation of the outcome of misused steroids by the athelets or sports persons. Take care of your precious health! Regards!