What are the effects of taping your breasts down?

Taping seems to work and is not high risk. It should work to keep the projection of the breasts from looking too big. Best, Dr. ALDO.

There should be no problem with taping your breast down for the purpose of reducing projection. You certainly wouldn't want to have this to tight causing discomfort.

I see many female to male trans patients who have bound their breasts for long periods and I think that they have made some changes to the shape of their breasts although the most noticeable change is bruising and excoriations to the skin.  Just one day of taping is likely not going to cause any significant change other than skin irritation from the tape.  Taping them too tight could cause skin ulcerations and permanent scarring though.  The Gender Identity Center in Denver is a great place to seek help and maybe councelling as well.