Bruising occurs after traumatic injury and consists of swelling and discolouration under the skin but no disruption of the skin.
Bruising is a normal body response to trauma. It is only when bruising occurs often and from very minor (often unnoticed) trauma that a problem may exist. Refer to the capillary fragility article for more information. While easy bruising is usually not a cause for concern, people who experience this problem should consult a physician to rule out more serious conditions that may cause bruising. Medical causes of easy bruising sometimes may be diagnosed from a few blood tests conducted by a doctor. More often, however, no clear cause for easy bruising is found.
Bruises look like areas of blue to purple-coloured skin that may turn yellow to dark brown over the course of a few days.
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