Arthritis occurs when the joints in the body are inflamed or there is a breakdown of cartilage in the joints. Joints are places in the body where two or more bones meet, such as the hip or knee. Cartilage is the cushion in the joints that protects them from pressure and makes movements smooth. When cartilage breaks down in a joint, the bones rub together.This causes pain, swelling and stiffness.

The most common type of arthritis is osteoarthritis. With this type of arthritis, the joints wear out over time from use or as the person ages. Injury to a joint may also lead to this type of arthritis. Osteoarthritis occurs most often in the knees, hips and hands. The joints begin to ache and thicken. At times, the tissues around the joint become strained and cause more pain.

Arthritis can also occur when the immune system, which normally protects the body from infection, attacks the body’s tissues. Rheumatoid arthritis is the most common type of this kind of arthritis. It causes inflamed and painful joints and may affect other parts of the body, such as the heart, muscles, blood vessels, nerves and eyes.

Signs of Arthritis

  • Joint pain
  • Joint is not stable or it feels like it will not support you
  • Joint enlarges or swells
  • Stiffness, often in the morning
  • Limited use of joint
  • Warmth around joint
  • Redness of the skin around joint

Other signs may occur with rheumatoid arthritis. If you have any signs that cause you pain or concern, see your doctor.


Your doctor will talk to you about your health and look at your joints.

Your doctor may order blood tests and x-rays.


  • Treatment of arthritis depends on:
  • The cause
  • Which joints are painful
  • Amount of pain
  • How the arthritis affects your daily activities
  • Your age
  • Your work or activity
  • Your doctor may suggest:
  • Medicine to control pain and swelling
  • Physical or occupational therapy
  • Assistive devices such as a cane or grab bars for the bathtub or toilet
  • Weight loss
  • Surgery to replace the joint

As a part of your treatment, you may need to:

  • Exercise to improve movement and joint strength. Good choices include walking, swimming, bike riding, dancing, strength training and gentle stretching exercises.
  • Use hot or cold treatments to control pain and swelling.
  • Avoid positions or movements that put extra stress on your painful joints.
  • Avoid staying in a position too long.

Call your doctor right away if:

  • You have severe unexplained joint pain.
  • The joint is very swollen.
  • You suddenly have a hard time moving the joint.
  • Your skin around the joint is red or hot to the touch.
  • You have other signs that concern you.

Talk to your doctor or nurse if you have any questions or concerns.

This website puts documents at your disposal only and solely for information purposes. They can not in any way replace the consultation of a physician or the care provided by a qualified practitioner and should therefore never be interpreted as being able to do so.