Why do my shoulders get deep painful red grooves from wearing heavy bra straps?
1. Introduction Heavy bra straps create deep painful red grooves on the shoulders by exerting intense, concentrated downward pressure across a narrow surface area of the trapezius muscle. This sustained mechanical load crushes local superficial capillaries and restricts lymphatic drainage, causing localized tissue ischemia and inflammatory erythema that manifests as painful, indented red lines. Over … Read more