What do the results mean?If your ESR is high, it may be related to an inflammatory condition, such as:InfectionRheumatoid arthritisRheumatic feverVascular diseaseInflammatory bowel diseaseHeart diseaseKidney diseaseCertain cancersSometimes the ESR can be slower than normal. A slow ESR may indicate a blood disorder, such as:PolycythemiaSickle cell anemiaLeukocytosis, an abnormal increase in white blood cellsIf your results are not in the normal range, it doesn't necessarily mean you have a medical condition that requires treatment. A moderate ESR may indicate pregnancy, menstruation, or anemia, rather than an inflammatory disease. Certain medicines and supplements can also affect your results. These include oral contraceptives, aspirin, cortisone, and vitamin A. Be sure to tell your health care provider about any drugs or supplements you are taking.Learn more about laboratory tests, reference ranges, and understanding results.
