What does contusion mean?
A contusion is a bruise: an injury produced when a blunt blow strikes the body hard enough to rupture small blood vessels beneath the skin, without breaking it. Blood escapes into the surrounding tissue, producing the familiar swelling, tenderness, and shifting palette of reds, blues, and yellows as the blood is gradually reabsorbed. Though most often used for ordinary surface bruises, the word belongs primarily to medical language and extends to injuries of internal organs and even the brain — a cerebral contusion is a bruise of brain tissue following head trauma. In everyday conversation most English speakers simply say 'bruise'; 'contusion' carries a formal, clinical register, which is why it dominates medical records, sports injury bulletins, and insurance or legal documents. Derived from the Latin 'contundere' (to crush or pound), it conveys precisely what a bruise is: the visible aftermath of force applied without penetration.
nounA bruise — an injury to the skin and underlying tissue caused by a blow, in which the skin is not broken but small blood vessels rupture, causing discoloration, swelling, and tenderness. In medical usage it denotes such an injury to any body part, including deeper structures.
- A bruise: injury to flesh or other tissue caused by a blow, with the skin unbroken and capillaries ruptured beneath the surface.
"The X-ray revealed no fracture, only a deep contusion along the athlete's shin."
"She walked away from the fall with nothing worse than a contusion on her hip."
"The scan showed a cerebral contusion at the site of impact, requiring close monitoring."
Regular plural; common in medical reporting when describing multiple sites of injury.
"The accident left him with contusions across both arms and chest."
That purple mark on your arm has a name borrowed straight from Latin — 'contusio' means 'a pounding', so every bruise is literally the record of a beating.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of contusion
Contusion derives from the Latin noun 'contusio', meaning 'a pounding or crushing', itself formed from the verb 'contundere' ('to beat or pound together'). The term entered English medical vocabulary in the early modern period, when physicians adopted Latin anatomical terminology wholesale. Its Latin root also underlies related words such as concussion (from 'concutere', to shake violently) and percussion (from 'percutere', to strike through), all describing injuries or effects caused by blows of different kinds.
Related word forms
How contusion is actually used
Register is formal or clinical; in everyday speech people say 'bruise'. 'Contusion' appears chiefly in medical reports, sports injury updates, and legal contexts, where its precise, non-everyday tone signals a technical assessment of an injury.
Easily confused with contusion
A concussion is a brain injury caused by a jolt or impact that disrupts brain function, while a contusion is a bruise of any tissue caused by a direct blow without breaking the skin.