Many people of any or gender can benefit from testosterone therapy. An individual seeking to make a permanent change in gender may desire a trasgender testosterone therapy. However, it is important that you do not begin any type of hormone therapy without first talking to your doctor. Discussing the changes in your body, mind and behavior can help you achieve your personal goals without disrupting your overall health. Including you doctor in your plan for sex hormone therapy is also the best way to monitor your results and avoid health complications.