Injection Site Bruising: Mechanisms, Risk Factors, and Management
1. Introduction Injection site bruising is a common and typically benign localized reaction characterized by the extravasation of blood from damaged microvasculature into the surrounding subcutaneous tissue. This vascular leakage manifests visually as a patch of discolored skin, clinically termed ecchymosis. While minor bruising is an expected risk of any procedure involving needle penetration, extensive … Read more