I tried testosterone replacement therapy (TRT) for a while, and it didn't work. I was tested and the results were in the low 300's range. The doctor seemed fairly ignorant and unhelpful, for the money I was paying him. I started with the shots, and then went with the surgical implants that last for up to 6 months. It had no effect other than causing me to develop a bald spot in my hair, and acne. I even found that it made my ED worse. The doctor didn't have a clue why this was happening. Could this be caused from my body converting the testosterone to estrogen? And what drugs could I take to stop this? And is it possible to regrow the hair that was lost during testosterone replacement therapy (TRT), or is this permanent?