Arthritis is the swelling and tenderness of one or more joints. The main symptoms of arthritis are joint pain and stiffness, which typically worsen with age. The most common types of arthritis are osteoarthritis and rheumatoid arthritis.
Osteoarthritis causes cartilage — the hard, slippery tissue that covers the ends of bones where they form a joint — to break down. Rheumatoid arthritis is a disease in which the immune system attacks the joints, beginning with the lining of joints.Arthritis often starts when a person is between 30 and 50 years old. Women are more likely to be affected than men.Problems like arthritis and rheumatism are the conditions that generally affect the fingertips, knees, and stiffness in muscle, swelling, redness and restricted movements.