Temperature above 101? F (38.3? C) on at least four occasions. It continues over a 14-day period for which no cause is evident.
Causes of Fever Of Unknown Origin
Causes in infants and children include: infections, collagen or autoimmune diseases, tumors, cancer, especially leukemia. In adults: infections, collagen or autoimmune diseases, tumors, cancer, especially kidney cancer and leukemia, self-induced in some psychologically unstable persons and medications can cause a fever as an adverse reaction.
Signs and Symptoms of Fever Of Unknown Origin
Symptoms include: rectally measured fever for at least 2 weeks and fever may be intermittent.
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Medical Content Last Updated on 07/12/2008
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