Rheumatoid arthritis affect the joints that may cause painful or swollen the knee joint, fingers joints, shoulder joint, etc. The pain can become unbearable until the person used rheumatoid arthritis (RA) medications. However, long time use of can cause kidney disease, liver failure, and heart/blood vessels, inflammatory of tissues of nervous system, Anemia, and lung disease.
The methods of diagnosis of this disease are physical exam that your doctor checks