Underwired bra causing inflammation under breast?

That can happen.: This may mean that you are wearing the incorrect bra size or a design that isn't right for you. If the bra is worn out -it can also cause more pressure. Up to 85% of american women are wearing an incorrect cup or band size (or both). Encourage you to go to a specialty bra stop for a fitting ; consultation. Having the correct support will add to your comfort ; breast health.