Definitions are well-referenced for accuracy,
Yet written originally in understandable terms.
Omdict provides plain, simple medical information.
Petechiae are pinpoint-sized red or purple spots of blood under the skin, which collect from broken capillary blood vessels. Petechiae are normally 1 mm or less in diameter. Similar to a petechia are purpura (slightly larger flat area of blood collection) and ecchymosis (even larger bruised area).
Petechiae do not blanch (become pale) when pressure is applied to them, differentiating the condition from another form of skin redness or rash such as erythema. Although not all situations involving petechiae are dangerous, particularly in some of the cases with children where they may appear with viral infections, in many circumstances the petechiae are an underlying medical sign of a serious health-related condition.
Petechiae are known to be caused by or related to a variety of diseases, conditions and situations, some of which include: allergic reaction, autoimmune disorders, blood thinner usage (including aspirin), certain viral infections, chemotherapy, excessive or hard coughing, idiopathic thrombocytopenic purpura (ITP), injury, leukemia, meningococcemia, septicemia (blood poisoning), thrombocytopenia (low platelet counts), trauma, and numerous others.
Synonyms, related terms and other keywords:
All content and hyperlinks provided by Omdict.com are for general educational and informational purposes only.
Such content is not intended to be a substitute for professional medical advice, diagnosis or treatment.
Disclaimer | Terms of Use | Privacy Policy
Copyright © 2010 www.omdict.com
