Arthritis is a group of over 100 medical conditions affecting the joints. These conditions are characterized by pain, swelling, and stiffness. Some types of arthritis, such as gout and pseudogout, often affect one joint at a time. Others, such as rheumatoid arthritis and psoriatic arthritis, can affect many joints at the same time.

Autoimmune Disorders

Autoimmune disorders occur when the immune system, which usually fights off infections, attacks your own body. Any part of the body can be affected by these disorders, however, the joints and surrounding structures are often involved. Other commonly affected systems include the skin, muscles, tendons, and mucous membranes, along with various organs such as the eyes, kidneys, lungs, and heart. Blood tests or imaging studies often reveal abnormal results and provide clues to the diagnosis.

Bone Health

Osteoporosis is a condition of decreased bone strength. This leads to fragile bones, which are at an increased risk for fractures.

More information on specific rheumatic diseases and treatments can be found on the American College of Rheumatology website at

The National Osteoporosis Foundation has provides helpful information on osteoporosis at

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