One possible side effect of taking the HGH injections is the patient's pituitary gland becoming lazy . The injections provide the body with a full dose of human growth hormone so the pituitary gland will not need to release its own real HGH. For this reason it can be hard to get off the injections because if they are stopped abruptly the person may experience a "rebound effect" in which he loses the benefits he had gained and maybe more. This is the result of the body being left without enough growth hormone, since the pituitary gland will have become lazy.
One of the most common questions asked about HGH is whether it can make users grow taller. Between the ages of about 12 and 18, your body is still growing. During this time, the administration of HGH can help you add inches to your height. As such, HGH is an essential part of therapy for children who have growth disorders such as dwarfism. However, between 18 and 21 years old, growth plates on your bones fuse together and essentially “lock” your height. Administering HGH may cause individual bones in your body to thicken, but it will not lengthen them.