Around 20% of people with rheumatoid arthritis will develop hardened bumps beneath the skin called rheumatoid nodules. They most often develop on the elbows, knees, or knuckles. RA is associated ...

Rheumatoid arthritis, also known as RA ... painful or limited movement, bumps under the skin or a low-grade fever. A rheumatologist would most likely conduct blood tests for inflammation and ...