According to the Global Testosterone Replacement Therapy Market Research Report, the market was worth USD xx billion in 2016 and estimated to be growing at a CAGR of xx%, to reach USD xx billion by 2021. Testosterone Replacement Therapy (TRT) is a category of hormone replacement therapy in which androgens such as testosterone, are replaced. Testosterone Replacement Therapy is often prescribed to counter the repercussions of male hypogonadism.