Symptoms & Signs
Symptoms occur when E. coli bacteria enter the intestine. The time between being infected and developing symptoms is usually 24 – 72 hours.
Diarrhea that is sudden, severe, and often bloody is the most common symptom.
Other symptoms may include:
- Loss of appetite
- Stomach cramping
- Vomiting (rare)
Symptoms of a rare but severe E. coli infection include:
- Bruises that happen easily
- Pale skin
- Red or bloody urine
- Reduced amount of urine
Diagnosis & Tests
The health care provider will perform a physical exam. A stool culture can be done to check for disease-causing E. coli.
Review Date : 1/20/2010
Reviewed By : Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; and George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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