Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Osteoarthritis Health Center

Select An Article

Hip Osteoarthritis (Degenerative Arthritis of the Hip)

Font Size

What Is Osteoarthritis?

Arthritis means "joint inflammation." It causes pain and swelling in the body's joints, such as the knees or hips. There are many types of arthritis, but osteoarthritis is the most common. Also known as degenerative joint disease or age-related arthritis, osteoarthritis is more likely to develop as people get older.

Osteoarthritis occurs when inflammation and injury to a joint cause a breaking down of cartilage tissue. In turn, that breakdown causes pain, swelling, and deformity. Cartilage is a firm, rubbery material that covers the ends of bones in normal joints. It is primarily made up of water and proteins. The primary function of cartilage is to reduce friction in the joints and serve as a "shock absorber." The shock-absorbing quality of normal cartilage comes from its ability to change shape when compressed. It can do this because of its high water content. Although cartilage may undergo some repair when damaged, the body does not grow new cartilage after it is injured.

Recommended Related to Osteoarthritis

Caring for Your Joints at Home

Just as the tread on your tires wears away over time, the cartilage that cushions your joints can wear away, too. It's a condition known as osteoarthritis. And without enough cushioning, the bones of a joint will hurt when they rub against each other. Frayed cartilage can't heal or grow back. "There's no way to reverse the arthritis once it has started," says Michaela M. Schneiderbauer, MD, an orthopedic surgeon at the University of Miami Miller School of Medicine. But there are ways to reduce the...

Read the Caring for Your Joints at Home article > >

The changes in osteoarthritis usually occur slowly over many years. There are, though, occasional exceptions.

The two main types of osteoarthritis are:

  • Primary: More generalized osteoarthritis that affects the fingers, thumbs, spine, hips, and knees
  • Secondary: Osteoarthritis that occurs after injury or inflammation in a joint, or as a result of another condition that may affect the composition of the cartilage, such as hemochromatosis

How Does Osteoarthritis Affect the Hip Joint?

Patients who have osteoarthritis of the hip sometimes have problems walking. Diagnosis can be difficult at first. That's because pain can appear in different locations, including the groin, thigh, buttocks, or knee. The pain can be stabbing and sharp or it can be a dull ache, and the hip is often stiff.

What Causes Osteoarthritis of the Hip Joint?

The causes of osteoarthritis of the hip are not known. Factors that may contribute include joint injury, increasing age, and being overweight.

In addition, osteoarthritis can sometimes be caused by other factors:

  • The joints may not have formed properly.
  • There may be genetic (inherited) defects in the cartilage.
  • The person may be putting extra stress on his or her joints, either by being overweight or through activities that involve the hip.
Next Article:

Today on WebMD

elderly hands
Even with arthritis pain.
woman exercising
Here are 7 easy tips.
acupuncture needles in woman's back
How it helps arthritis, migraines, and dental pain.
chronic pain
Get personalized tips to reduce discomfort.
Keep Joints Healthy
Chronic Pain Healthcheck
close up of man with gut
man knee support
woman with cold compress
Man doing tai chi
hand gripping green rubber ball
person walking with assistance