While both are types of arthritis, there are notable differences Medically reviewed by Scott Zashin, MD Osteoarthritis (OA) is the most common type of arthritis, with an OA diagnosis believed to ...

Juvenile idiopathic arthritis and rheumatoid arthritis are both inflammatory diseases that affect the joints, but they’re separate conditions with unique long-term outlooks. The most common type of ...

A stiff knee in the morning or an aching hand after a long day might feel like the same problem, but they both can pose different problems. Joint pain can affect anyone, but not all of them are ...