Testosterone Replacement Therapy (TRT) is a treatment designed to address low testosterone levels, or hypogonadism, in men. This hormone is key for male sexual development, muscle and bone health, and general wellbeing. TRT can be administered through various means: injections into the muscle, topical gels and creams, skin patches. subdermal pellets, and, through less common due to liver concerns, oral medications. The therapy aims to normalize testosterone levels, thereby imrpoving symptoms like reduced libido, erectile dysfunction, fatigue, muscle loss, and mood changes.