Question: what are the symptoms of arthritis in the elbow joints?
Answer: Pain. In the early stages of rheumatoid arthritis, pain may be primarily on the outer side of the joint. ... 
Swelling. This is more common with rheumatoid arthritis.
Instability. ... 
Lack of full movement. ... 
Locking. ... 
Stiffness. ... 
Pain in both elbows.