Purpura is sudden, severe bruising that may be localized, regional,
or widespread and that occurs without an injury. People who develop purpura
often have signs of illness, such as a fever, weakness, fatigue, or a vague
sense of being ill (malaise).
The bruising caused by purpura is different from the isolated
bruises a person often gets after bumping into an object or falling. Purpura
bruises develop from within the body, rather than from an injury.
A bleeding or clotting disorder is the most common cause of
purpura. Purpura that comes on quickly over a short period (a few hours) may be
a sign of a serious infection that requires immediate medical treatment.
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & H. Michael O'Connor, MD - Emergency Medicine
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