Anti-cyclic citrullinated peptide antibody 110RU/ml is higher than the upper limit of the normal reference range, but you can’t rely only on the quantitative value of anti-cyclic citrullinated peptide antibody to determine whether the patient’s condition is serious or not, but rather, you have to analyze from the aspect of the disease that causes the abnormalities of anti-cyclic citrullinated peptide antibody and the patient’s specific situation, etc. Elevated anti-cyclic citrullinated peptide antibody is mainly seen in rheumatoid arthritis. The reference range of anti-cyclic citrullinated peptide antibody quantitative test is 5RU/ml or less, and anti-cyclic citrullinated peptide antibody 110RU/ml is significantly higher than the upper limit of the reference range, which is an abnormal result. Anti-cyclic citrullinated peptide antibody belongs to the antikeratin antibody, and the level of serum anti-cyclic citrullinated peptide antibody is closely related to the degree of joint damage in rheumatoid arthritis patients. Anti-cyclic citrullinated peptide antibody has high sensitivity and specificity in the diagnosis of rheumatoid arthritis, and is often combined with rheumatoid factor, if the anti-cyclic citrullinated peptide antibody of 110RU/ml is diagnosed with rheumatoid arthritis, then timely and standardized treatment is needed to avoid the occurrence of disability and deformity of joints. Anti-cyclic citrullinated peptide antibody test results should be interpreted by a professional physician, and it is recommended that patients with anti-cyclic citrullinated peptide antibody 110RU/ml go to the rheumatology and immunology department of a regular hospital for detailed consultation in order to avoid delaying their condition.