Interleukin 6 clinically is generally referred to as interleukin 6. This test can be used to find out whether the level of interleukin 6 in the patient’s body fluids is normal or not, and if it is elevated, there may be an inflammatory response. Interleukin 6 is mainly produced by immune T-cells, B-cells and other cells, and the normal value of interleukin 6 is 108.85±41.48 ng/ml. interleukin 6 plays an important role in maintaining the body’s immune response, bone marrow hematopoiesis, and inflammatory response. The interleukin 6 test is performed by taking venous blood on an empty stomach to reflect changes in the patient’s condition. Interleukin 6 levels that are high are primarily associated with inflammation and are commonly seen in diseases such as rheumatoid arthritis, systemic lupus erythematosus, psoriasis and alcoholic cirrhosis. Interleukin 6 test is helpful in evaluating infectious diseases such as pneumonia and sepsis; it is also helpful in evaluating diabetes, cardiovascular diseases and rheumatic diseases. In summary, if the interleukin 6 test result is elevated, further examination should be conducted, and the condition should not be judged on its own based on a single test result, but should be treated in accordance with the doctor’s instructions.