Arthritis affects joints and causes symptoms like pain and stiffness. There are more than 100 types. Treatment is managing your symptoms or joint replacement. Arthritis isn't a single condition but a broad term for many conditions affecting the joints. Arthritis typically is associated with pain that affects the ability to move a joint. It causes swelling and tenderness of one or more joints. The main symptoms are joint pain and stiffness, which can impact daily activities and work. The most common types are osteoarthritis and rheumatoid arthritis. Arthritis is a condition often characterized by inflammation or swelling of one or more joints. It includes more than 100 conditions that affect the joints, tissues around the joint, and other connective tissues. Get the basics on arthritis diagnosis and treatment options from the experts at WebMD. Arthritis refers to a range of conditions involving joint inflammation. There are over 100 types, each with different symptoms that can emerge gradually or suddenly. Common arthritis symptoms. 8 early signs of arthritis Wondering what arthritis feels like? The signs of early-onset arthritis and arthritis that develops after age 50 are the same. Here are some early arthritis symptoms that should prompt you to see a medical provider. The Arthritis Foundation is the largest nonprofit organization dedicated to the prevention, control and cure of America's leading cause of disability. Arthritis causes pain in the joints and the tissues surrounding the joints. The article looks at the symptoms, types, causes, and treatments. Find out about arthritis, including the main types of arthritis, symptoms, treatments, self-care and when to get medical help. Arthritis is a general medical term used to describe a disorder in which the smooth cartilagenous layer that lines a joint is lost, resulting in bone grinding on bone during joint movement. [2] Symptoms generally include joint pain and stiffness. [2] Other symptoms may include redness, warmth, swelling, and decreased range of motion of the affected joints. [2][3] In certain types of arthritis.