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HEALTH ENCYCLOPEDIA

Diseases & Conditions A - Z
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Arthritis

What Is Arthritis?

Arthritis is an inflammation of the joints. It can affect one joint or multiple joints. There are more than 100 different types of arthritis, with different causes and treatment methods. Two of the most common types are osteoarthritis (OA) and rheumatoid arthritis (RA).

The symptoms of arthritis usually develop over time, but they may also appear suddenly. Arthritis is most commonly seen in adults over the age of 65, but it can also develop in children, teens, and younger adults. Arthritis is more common in women than men and in those who are overweight.

What Causes Arthritis?

Cartilage is a firm but flexible connective tissue in your joints. It protects the joints by absorbing the pressure and shock created when you move and put stress on them. A reduction in the normal amount of this cartilage tissue cause some forms of arthritis.

Normal wear and tear causes OA, one of the most common forms of arthritis. An infection or injury to the joints can exacerbate this natural breakdown of cartilage tissue. Your risk of developing OA may be higher if you have a family history of the disease.

Another common form of arthritis, RA, is an autoimmune disorder. It occurs when your body’s immune system attacks the tissues of the body. These attacks affect the synovium, a soft tissue in your joints that produces a fluid that nourishes the cartilage and lubricates the joints.

RA is a disease of the synovium that will invade and destroy a joint. It can eventually lead to the destruction of both bone and cartilage inside the joint.

The exact cause of the immune system’s attacks is unknown, but scientists have discovered genetic markers that increase your risk of developing RA tenfold.

What Are the Symptoms of Arthritis?

Joint pain, stiffness, and swelling are the most common symptoms of arthritis. Your range of motion may also decrease, and you may experience redness of the skin around the joint. Many people with arthritis notice their symptoms are worst in the morning.

In the case of RA, you may feel tired or experience a loss of appetite due to the inflammation that immune system activity causes. You may also become anemic — meaning your red blood cell count decreases — or have a slight fever. Severe RA can cause joint deformity if left untreated.

How Is Arthritis Diagnosed?

Diagnosis of arthritis will start with your doctor performing a physical exam. During the exam, your doctor will check for fluid around the joints, warm or red joints, and limited range of motion in the joints.

Extracting and analyzing inflammation levels in your blood and joint fluids can help your doctor determine what kind of arthritis you have.

Doctors commonly use imaging scans such as X-ray, MRI, and CT scans to produce an image of your bones and cartilage. This is so they can rule out other causes of your symptoms, such bone spurs.

How Is Arthritis Treated?

The main goal of treatment is to reduce the amount of pain you’re experiencing and prevent additional damage to the joints. Improving your joint function is also important. Your doctor may prescribe you a combination of treatment methods to achieve the best results.

Medication

A number of different types of medication treat arthritis. They include:

  • analgesics, e.g., hydrocodone (Vicodin) or acetaminophen (Tylenol): effective for pain management, but don’t help decrease inflammation
  • nonsteroidal anti-inflammatory drugs (NSAIDs), e.g., ibuprofen: help control pain and inflammation
  • menthol or capsaicin creams: block the transmission of pain signals from your joints

If you have RA, your doctor may put you on corticosteroids or disease-modifying antirheumatic drugs (DMARDs), which suppress your immune system.

Surgery

Surgery to replace your joint with an artificial one may be an option. This form of surgery is most commonly performed to replace hips and knees.

If your arthritis is most severe in your fingers or wrists, your doctor may perform a joint fusion. In this procedure, the ends of your bones are locked together until they heal and become one.

Physical Therapy

Physical therapy involving exercises that help strengthen the muscles around the affected joint is a core component of arthritis treatment.

What Is the Long-Term Outlook for People with Arthritis?

There is no cure for arthritis. However, the right treatment can greatly reduce your symptoms. In addition to the treatments your doctor recommends, you can make a number of lifestyle changes that may help you manage your arthritis.

Regular exercise will keep your joints flexible. Swimming is often a good form of exercise for people with arthritis because it doesn’t put pressure on your joints the way running and walking do. Staying active is important, but you should also be sure to rest when you need to and avoid overexerting yourself.

Weight loss and maintaining a healthy weight reduce the risk of developing OA, and can reduce symptoms if you already have it. Eating a healthy diet is important for weight loss. Eating foods with lots of antioxidants can help reduce inflammation.

You’ll learn what works best for you in terms of controlling pain. Some people find heating pads and ice packs to be soothing. Others use mobility assistance devices, like canes or walkers, to help take pressure off sore joints.


Content licensed from:

Written by: Brindles Lee Macon and Lauren Reed-Guy
Published on: Aug 20, 2012
Medically reviewed on: Dec 14, 2015: [Ljava.lang.Object;@2c952237

This feature is for informational purposes only and should not be used to replace the care and information received from your health care provider. Please consult a health care professional with any health concerns you may have.
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