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What Is Arthritis?
Part 2 of 2 - Types of Arthritis & Related Rheumatic Conditions

By Carol & Richard Eustice, About.com

Updated April 29, 2008

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

Carpal Tunnel Syndrome

Carpal tunnel syndrome is a condition in which pressure on the median nerve at the wrist causes tingling and numbness in the fingers. It can begin suddenly or gradually, and can be associated with other diseases, such as rheumatoid arthritis, or it may be unrelated to other disorders.

Ankylosing Spondylitis

Ankylosing spondylitis is a chronic inflammatory disease of the spine that can fuse the vertebrae to produce a rigid spine. Other joints besides the spine may become involved.

Spondylitis is a result of inflammation that usually starts in tissue outside the joint. The most common early symptoms of spondylitis are low back pain and stiffness that continues for months.

The exact cause is still unknown, but, most people with spondylitis have a genetic marker known as HLA-B27. Having this genetic marker does not mean a person will develop spondylitis, but people with the marker are more likely to develop the disease. Ankylosing spondylitis usually affects men between the ages of 16 and 35, but it can also affect women.

Bursitis / Tendinitis

Bursitis is inflammation of the bursa sacs. Bursa are the fluid-filled sacs located in the areas where muscles and tendons glide over the bones. Tendinitis, also spelled tendonitis, is inflammation of a tendon. Tendons connect your muscles to your bones. Inflammation of the tendon sheath is tenosynovitis. When these areas become inflamed, movement becomes stiff and painful.

Infectious Arthritis

Infectious arthritis is a form of joint inflammation caused by bacteria, viruses or fungi. Diagnosis is made by culturing the organism from the joint.

Lyme Disease

Lyme disease is a serious tick-borne disorder. Lyme disease can affect the:

  • joints
  • nervous system
  • heart
  • skin
  • eyes

Reactive Arthritis

Reactive arthritis, also called Reiter's syndrome, involves inflammation in the joints and sometimes where ligaments and tendons attach to bones. People with Reiter's have arthritis and one or more of the following conditions:

Sjogren's Syndrome

Sjogren's syndrome is characterized by dysfunction of the moisture-producing glands causing dryness of the mouth and eyes. Other parts of the body may also be affected, resulting in a wide range of symptoms.

Osteoporosis

Osteoporosis results in loss of bone tissue, leaving bones less dense and prone to fracture. Osteoporosis is a silent disease that can often be prevented.

Other Conditions

Related Resources

Sources: Arthritis: Timely Treatments For An Ageless Disease, FDA Consumer, May-June 2000; Do I have Arthritis?, NIAMS, 7/01

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