i have been giving myself injections for several years now. So far only 3 or 4 Vials have crystallized on me. What makes them do that? And, is the Testosterone BAD and no longer usable after it does crystallize? i found one thread on here and some users said to pour warm water around the Vial and melt the crystals. Something tells me not to do that. i would be scared to do that. OH.. and i know we are suppose to do the injection in our leg... but for the past few weeks i decided to inject in my hip. Is it okay to inject in the hip instead of the leg? i know all these questions should be asked of my Doctor.. But i'm one of those people that forget everything i was going to ask. i become stupid when i get in the Doctors office. Thanks in advance for the Help!!! Oh.. Just to let You know... Two weeks ago my Vial crystallized and i took it back to the Pharmacy and they replaced it with a Full Vial at NO Charge. (Wal-Greens)... Thanks Again!!! Sorry if i rambled to much.