Why does my bra dig into my armpits?

Bras dig into your armpits when they don't fit your body properly.

A cup size that's too small forces breast tissue toward your underarms, while an underwire that doesn't follow your natural breast root creates pressure points where they shouldn't exist. The band may be too tight, causing the sides to pull uncomfortably, or your straps might be overtightened as a way to compensate for other fit issues.

Recognizing that the "Tail of Spence" (a normal extension of breast tissue into the armpit area) requires proper accommodation can help you select bras engineered with wider side panels and appropriate support. When shopping for bras that won't dig in, focus on finding full coverage bras that fully enclose your breast tissue, ensuring the band sits level around your torso, and consider the best wireless bras for support without creating pressure points.