A rheumatoid factor level of 43.5 IU/mL is above the normal range. This blood test is often used when doctors suspect rheumatoid arthritis (RA) or other autoimmune conditions. However, by itself, it does not confirm the presence of any disease. Some healthy people can also have a raised value, so your symptoms and other tests are very important for diagnosis. Since you have joint pain, it is possible that your joints are inflamed. Your doctor may advise further examination to understand the exact cause. There is no direct way to lower rheumatoid factor levels on its own. Treatment focuses on controlling the underlying condition. If RA is confirmed, doctors often prescribe medicines called disease-modifying anti-rheumatic drugs to slow the illness and protect your joints. To ease joint pain, gentle exercise, regular movement, and warm compresses can help. During painful periods, rest the affected joints and use pain-relieving medicines only under medical advice. Maintaining a healthy weight, eating a balanced diet, and avoiding smoking can also support joint health. Early treatment is important to prevent long-term joint damage.