You can ' t add muscle mass to your wrist . If we want to be technical here , I think it would be possible to break the bones in your wrist up a bit , let them heal to be a bit bigger , break them up a bit , let them heal to a bit bigger and repeating this . Similar to how people increase their height by slowly stretching their leg bones . Not a medical professional so not sure if this is possible . Maybe someone else has a better expertise on this ? But seriously I ' m a bit shorter than you , but I also have skinny wrists . Can also easily grab around my wrist with fingers with room to spare . If you want to look better you should just pack on more weightmuscle . This will make it become a lot less noticable . I ' m 5 ' 11 , 215 lbs Look like this skinny wrist includeden , and I ' m not particularly self conscious about my wrists . You could also just start doing this in photos