Testosterone
"Diabetes high blood sugar can cause testosterone to fall into low levels.  Had all of the symptoms of low testosterone before.  Was injecting into the right quadricep.  Kept getting blood gushers there.  Changed the injection location to the upper outside corner of the right glute and got much better results.  Blood sugar control and exercise are key to getting optimal results.  Also, you HAVE to donate blood every 8 weeks in order to keep the iron levels down (red blood cell count).  High iron can lead to serious heart problems.  Some blood banks require that you have a prescription from your doctor to donate because the high iron causes the blood to be so thick that it can't be used in a transfusion.  Red Cross takes it regardless."