Finding himself unable to perform was an alarming first for him. When Evans, a retiree who lives in Amherst, Ohio, told his doctor, he received a prescription for Viagra. That didn't help. At a follow-up appointment, he had some blood work done. It showed that his testosterone level had tanked, likely a side effect of one of the post-transplant medications he was taking. This time, his doctor sent him to a urologist, who prescribed a testosterone skin patch to boost the levels of the hormone in his blood. He's now been using patches for about five months.
A similar drop in C-Reactive protein - a standard measure whole body inflammation - occurs with each pound lost as well. This drop in inflammation is very important, because "circulating CRP levels were significantly higher in obese men with erectile dysfunction as compared with obese men without erectile dysfunction."  Arterial inflammation can lead to endothelial dysfunction and arteriosclerosis, both of which can lead to erection problems in the short and long term, respectively. For more information see my page on Weight Loss and Erectile Dysfunction .
Testosterone replacement therapy has been proposed to be a new potential obesity treatment modality in hypogonadal men with excessive body fat mass and metabolic derangements. 2 It should be underscored that the contribution of testosterone replacement therapy to combating obesity remains largely unknown to medical professionals. 2 It is therefore important to highlight the promising research on the anti-obesity effects of testosterone replacement therapy and help implement its research findings into clinical practice, for the benefit of a growing population of suffering hypogonadal obese men.