Fever
DDx
Common causes
- Infection - Bacterial, viral, rickettsial, fungal, parasitic
 - CNS, sinuses, dental, endocarditis, pneumonia, liver, biliary system, gastrointestinal, peritonitis, abdominal abscess, urinary tract infection, prostate, sexually transmitted disease, skin, soft tissues, bone, joints
 
- Autoimmune disease
- CNS disease including head trauma, mass lesion
- Malignancy, especially lymphoma, leukemia, renal cell carcinoma, primary or metastatic liver cancer
- Cardiovascular disease, eg, myocardial infarction, thrombophlebitis, pulmonary embolism
- Gastrointestinal disease, eg, inflammatory bowel disease, alcoholic hepatitis, granulomatous hepatitis
- Miscellaneous, eg, drug fever, sarcoidosis, familial Mediterranean fever, tissue injury, hematoma, factitious fever
- Heat stroke, neuroleptic malignant syndrome, malignant hyperthermia
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Last updated: December 1, 2014
Citation
Zeiger, Roni F.. "Fever." Diagnosaurus, 4th ed., McGraw-Hill Education, 2014. Emergency Central, emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114161/all/Fever. 
Zeiger RFR. Fever. Diagnosaurus. McGraw-Hill Education; 2014. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114161/all/Fever. Accessed October 31, 2025.
Zeiger, R. F. (2014). Fever. In Diagnosaurus (4th ed.). McGraw-Hill Education. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114161/all/Fever
Zeiger RFR. Fever [Internet]. In: Diagnosaurus. McGraw-Hill Education; 2014. [cited 2025 October 31]. Available from: https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114161/all/Fever.
* Article titles in AMA citation format should be in sentence-case
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T1  -  Fever
ID  -  114161
A1  -  Zeiger,Roni F,
Y1  -  2014/12/01/
BT  -  Diagnosaurus
UR  -  https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114161/all/Fever
PB  -  McGraw-Hill Education
ET  -  4
DB  -  Emergency Central
DP  -  Unbound Medicine
ER  -  

 Diagnosaurus
Diagnosaurus

