Initial treatment of both OA and RA is usually nonpharmacological using heat or exercise.

Both OA and RA present with joint stiffness lasting 20-30 minutes after rest.

OA usually impacts distal interphalangeal joints; RA impacts proximal interphalangeal joints.

OA is a localized process, whereas RA may be systemic.

Both OA and RA have an acute onset in older adults.