Erythrocyte Sedimentation Rate (ESR) is a non-specific test for diagnosing diseases but is simple and easy to perform, helping to detect abnormalities of the body related to the body's inflammatory response to screen and diagnose many diseases.

The erythrocyte sedimentation rate (ESR) test is still a fairly common test in laboratories, mainly used to assess inflammation associated with a number of diseases such as autoimmune diseases, infections, arthritis, some types of cancer... An increased erythrocyte sedimentation test result (red blood cells settle faster than normal) can be an indicator of inflammation in the body.