What is arthritis?

Arthritis is a joint disorder featuring inflammation. A joint is an area of the body where two different bones meet. A joint functions to move the body parts connected by its bones. Arthritis literally means inflammation of one or more joints. Arthritis is frequently accompanied by joint pain. Joint pain is referred to as arthralgia.

A normal joint and a Rheumatoid arthritis

The causes of arthritis depend on the form of arthritis. Causes include injury (leading to osteoarthritis), abnormal metabolism (such as gout and pseudogout), inheritance, infections, and for unclear reasons (such as rheumatoid arthritis and systemic lupus erythematosus).
Arthritis is classified as one of the rheumatic diseases. These are conditions that are different individual illnesses, with differing features, treatments, complications, and prognosis. They are similar in that they have a tendency to affect the joints, muscles, ligaments, cartilage, tendons, and many have the potential to affect internal body areas.

Osteoarthritis

Symptoms of arthritis include pain and limited function of joints. Inflammation of the joints from arthritis is characterized by joint stiffness, swelling, redness, and warm. Tenderness of the inflamed joint can be present.

Many of the forms of arthritis, because they are rheumatic diseases, can involve symptoms affecting various organs of the body that do not directly involve the joints. Therefore, symptoms in some patients with arthritis can also include nonspecific fever, weight loss, fatigue, and feeling unwell.

Arthritis News

Today's baby boomers are heavier and more likely to have arthritis

Baby-boomers have spent more years living with more obesity than the previous generation, researchers at Beth Israel Deaconess Medical Center (BIDMC) have found. Although it may be too early to tell w...

Long-standing rheumatoid arthritis - Adalimumab plus methotrexate effective

For people with long-standing rheumatoid arthritis, combined treatment with the new "biologic" drug adalimumab and methotrexate is about five times more effective than methotrexate alone, ac...

Rheumatoid arthritis, contradictory immune responses explain different therapeutic effects

Using a humanized mouse model that mimics the effects of human rheuma-toid arthritis (RA), researchers have discovered that protein growth factors called cytokines in the immune system have both pro- ...