Detailed answer

Rheumatoid arthritis is an autoimmune condition that causes inflammation in the joints. This inflammation can also affect the skin, leading to dryness and itchiness. The exact link between dry skin and rheumatoid arthritis is not fully understood, but it is believed to be related to the immune system's overactivity and the release of inflammatory chemicals that affect the skin's moisture levels. Additionally, some medications used to treat rheumatoid arthritis can also contribute to dry skin as a side effect. Keeping the skin well moisturized and managing the underlying autoimmune condition are important steps in managing dry skin associated with rheumatoid arthritis.