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Bruise - Overview

Alternative Names

Contusion; Hematoma

Definition of Bruise:

A bruise is an area of skin discoloration. A bruise occurs when small blood vessels break and leak their contents into the soft tissue beneath the skin.

Considerations:

There are three types of bruises:

Subcutaneous -- beneath the skin
Intramuscular -- within the belly of the underlying muscle
Periosteal -- bone bruise

Bruises can last from days to months, with the bone bruise being the most severe and painful.

Causes:

Bruises are often caused by falls, sports injuries, car accidents, or blows received by other people or objects.

If you take a blood thinner, like aspirin or warfarin (Coumadin), you are likely to bruise more easily.

Bone bruise

Muscle bruise

Skin bruise

Bruise healing - series

Reviewed last on: 5/2/2009
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Schafer Al. Approach to the patient with bleeding and thrombosis. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 178.

Buttaravoli P. Contusion: (Bruise). In: Buttaravoli P, ed. Minor Emergencies. 2nd ed. Philadelphia, Pa: Mosby Elsevier; 2007: chap 137.

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