What medical term does RA stand for?

RA stands for rheumatoid Arthritis, which is a chronic inflammatory disorder primarily affecting the joints. It occurs when the immune system mistakenly attacks the synovium, the lining of the membranes that surround the joints, leading to pain, swelling, and potential joint damage. RA can also affect other systems in the body, including the skin, eyes, lungs, and blood vessels. Early diagnosis and treatment are crucial to managing the condition and preventing complications.