For hypertrophy of the shoulders, it can be improved by physical exercise and can be treated with both muscle release, surgical treatment and injections. Injections can improve the thickness of the trapezius muscle and visually make the shoulders slimmer from the front and side positions. For thick arms, you can first have a professional plastic surgeon evaluate the cause of the thick arms, both muscular and fatty. If it is a muscular type of hypertrophy, functional exercises can be performed to improve it. If the arms are fatty, they can be improved with lipolysis injections or liposuction, along with certain exercises and functional exercises.