If you want to know how to inject steroids , the first thing you need to know is how to prepare for the injection. You know you need to stick it into the muscle tissue, and we’ll go into the specifics of that later on, but there’s more to it than that. There are eight specific steps you need to follow when injecting anabolic steroids, and while that may sound like a lot the whole process shouldn’t take but a minute. Failure to follow these eight remarkably simple steps can result in complications such as infections or simply very uncomfortable injections, and an unnecessarily sore injected area.
The most commonly used AAS in medicine are testosterone and its various esters (but most commonly testosterone undecanoate , testosterone enanthate , testosterone cypionate , and testosterone propionate ),  nandrolone esters (most commonly nandrolone decanoate and nandrolone phenylpropionate ), stanozolol , and metandienone (methandrostenolone).  Others also available and used commonly but to a lesser extent include methyltestosterone , oxandrolone , mesterolone , and oxymetholone , as well as drostanolone propionate , metenolone (methylandrostenolone), and fluoxymesterone .  Dihydrotestosterone (DHT; androstanolone, stanolone) and its esters are also notable, although they are not widely used in medicine.  Boldenone undecylenate and trenbolone acetate are used in veterinary medicine .