if I have klinefelter syndrome.. ?

[student]

If it is found out that I have klinefelter syndrome or am an XXY/XY mosaic, does that mean I NEED to have testosterone therapy, so that the gynecomastia wont come back after surgery??

My problem is with the risk of baldness. I really really really do not want to risk my hair, I like having it long and thick.

As I mentioned in a previous post, im 19, live in London (UK) and im planning on surgery soon. I have average to slightly above average size genetalia, which does not make it seem like klinefelter syndrome... but I DO have wide hips and a female fat pattern (not much of a problem since I excersise so much - I used to be the fat kid in secondary school so im paranoid about being fat! .)

any help?
thanks!!