MCQ IN MEDICINE

Detailed explanation-1: -Rheumatoid arthritis, or RA, is an autoimmune and inflammatory disease, which means that your immune system attacks healthy cells in your body by mistake, causing inflammation (painful swelling) in the affected parts of the body.

Detailed explanation-2: -Certain genetic variations and non-genetic factors contribute to your risk of developing rheumatoid arthritis. Non-genetic factors include sex and exposure to irritants and pollutants. People born with variations in the human leukocyte antigen (HLA) genes are more likely to develop rheumatoid arthritis.