Osteoarthritis is the wear-and-tear breakdown of joint cartilage, most common in people over 50

Osteoarthritis (OA) happens when the cartilage that cushions the ends of your bones gradually wears down. Unlike rheumatoid arthritis, which is an autoimmune disease, osteoarthritis is mechanical — it develops over years as joints are used. The cartilage thins, the bones underneath rub together, and the joint becomes stiff, painful, and sometimes swollen.

It most often affects the knees, hips, hands, neck, and lower back — the joints that bear weight or move repeatedly. You might notice pain that gets worse after activity or at the end of the day, stiffness when you first wake up or after sitting still, or a grinding or creaking sensation in the joint. Symptoms develop slowly and vary widely: some people have mild discomfort, others have pain that limits what they can do.

Osteoarthritis is not reversible, but the pain and stiffness can be managed. The goal of treatment is to reduce pain, keep the joint moving, and help you stay independent as long as possible.

Key Takeaways

  • Osteoarthritis develops when cartilage wears down over time, most commonly in the knees, hips, hands, and lower back.
  • Risk factors include age over 50, previous joint injury, excess weight, and repetitive stress on a joint.
  • Pain management combines physical activity, weight management if needed, over-the-counter or prescription medications, and sometimes injections or other procedures.
  • A doctor can diagnose osteoarthritis using X-rays or other imaging and rule out other types of arthritis.
  • Many people with osteoarthritis remain active and independent with the right treatment plan and lifestyle changes.

Who gets osteoarthritis and why

Age is the strongest risk factor — osteoarthritis becomes more common after 50, though it can develop earlier. If you have had a joint injury (a torn meniscus, a fracture, or a ligament tear), that joint is more likely to develop OA years later, even if it healed well at the time.

Excess weight puts extra stress on weight-bearing joints like the knees and hips, increasing the risk. Repetitive use — from a job, a sport, or a hobby — can wear down cartilage faster in that joint. Family history matters too: if a parent or sibling has osteoarthritis, your risk is higher. Women are more likely to develop OA than men, especially after menopause.

Some people develop osteoarthritis in one joint after an injury, while others develop it in multiple joints over time. The rate of progression varies: some people's symptoms stay mild for years, while others experience faster decline.

Symptoms and when to see a doctor

Early signs include joint pain that worsens with activity and improves with rest, morning stiffness that lasts less than 30 minutes, or a creaking or grinding feeling in the joint. As osteoarthritis progresses, pain may occur even at rest, stiffness may last longer, and swelling or warmth in the joint may appear.

See a doctor if joint pain lasts more than a few weeks, limits your daily activities, or wakes you at night. A doctor can examine the joint, take X-rays or ultrasound images, and sometimes order blood tests to rule out rheumatoid arthritis or other conditions. Early diagnosis does not change the course of the disease, but it allows you to start pain management and lifestyle changes sooner.

Tell your doctor which activities cause the most pain, how long morning stiffness lasts, and whether the pain affects your sleep or mood. This information helps them understand how much the osteoarthritis is affecting your life and what treatment approach will work best for you.

Pain management and treatment options

Treatment starts with physical activity and weight management. Regular, gentle movement — walking, swimming, water aerobics, or tai chi — keeps joints flexible and strengthens the muscles around them. Losing weight, if you are overweight, reduces stress on weight-bearing joints. Both of these changes take weeks or months to show benefit, but they address the underlying problem rather than just the symptoms.

Over-the-counter pain relievers like acetaminophen or ibuprofen reduce pain and inflammation. Some people find topical creams (applied directly to the skin over the joint) helpful. If over-the-counter medications do not control pain, a doctor may prescribe stronger pain relievers or anti-inflammatory drugs.

Injections into the joint — corticosteroids or hyaluronic acid — can reduce pain and swelling for weeks or months. Heat therapy (warm baths, heating pads) and cold therapy (ice packs) both help some people. Braces or supports can stabilize a joint and reduce pain during activity. Physical therapy teaches exercises to strengthen muscles and improve range of motion.

Surgery is an option when pain is severe and other treatments have not worked. Procedures range from arthroscopy (cleaning out loose cartilage) to joint replacement. A doctor will discuss whether surgery is appropriate for your situation.

Daily life with osteoarthritis

Many people with osteoarthritis continue to work, exercise, and do the activities they enjoy — it takes planning and sometimes modifications. Pacing is important: spread activity throughout the day rather than doing too much at once. Take breaks before pain starts, not after. Use assistive devices like a cane, walker, or reaching tool if they reduce pain or make tasks easier.

Adapt your home to reduce strain on joints: use lever-style door handles instead of knobs, install grab bars in the bathroom, raise toilet seats, and use long-handled tools for gardening or cleaning. Wear supportive shoes and avoid high heels. In the kitchen, use electric can openers and jar openers, and keep frequently used items at waist height.

Fatigue often accompanies chronic pain, so prioritize sleep and rest. Talk to your doctor or a mental health counselor if pain is affecting your mood or causing depression or anxiety — these are common and treatable.

The difference between osteoarthritis and other types of arthritis

Osteoarthritis is mechanical wear and tear. Rheumatoid arthritis (RA) is an autoimmune disease where the immune system attacks the joint lining, causing inflammation, pain, and swelling — often in multiple joints at once and often in younger people. RA can develop quickly and cause permanent joint damage if not treated early.

Gout is caused by uric acid crystals building up in a joint, usually the big toe, causing sudden severe pain and swelling. Lupus and other autoimmune diseases can affect joints but also cause symptoms elsewhere in the body.

A blood test can help distinguish between these conditions. Osteoarthritis does not show up in blood work the way RA does, but X-rays show the characteristic bone changes of OA. If you have symptoms in multiple joints, rapid onset, or morning stiffness lasting more than an hour, ask your doctor about testing for autoimmune arthritis.

Resources and next steps

Your primary care doctor is the starting point for diagnosis and treatment planning. A rheumatologist specializes in arthritis and can manage complex cases or help decide whether you need injections or other advanced treatments. A physical therapist can teach you exercises and techniques to manage pain and stay active.

The Arthritis Foundation offers information, exercise videos, and local support groups. Your local senior center or community health center may offer arthritis exercise classes. Some health insurance plans cover physical therapy or occupational therapy — check your plan or ask your doctor for a referral.

Keep a pain diary for a week or two before your doctor visit: note which activities cause pain, what time of day is worst, and what helps. This record helps your doctor understand your situation and choose the best treatment for you.

Frequently Asked Questions

Can osteoarthritis get worse over time?

Osteoarthritis is progressive, meaning cartilage continues to wear down, but the rate varies widely. Some people have stable symptoms for years, while others experience gradual worsening. Treatment and lifestyle changes can slow progression and reduce pain, but they do not stop the underlying wear and tear.

Is osteoarthritis hereditary?

Family history increases your risk, but osteoarthritis is not directly inherited like some genetic conditions. If your parents had OA, you are more likely to develop it, but you may not, and you may develop it in different joints. Age, weight, and previous injuries also play major roles.

Can I exercise if I have osteoarthritis?

Yes, and exercise is one of the most important treatments. Low-impact activities like walking, swimming, water aerobics, and tai chi strengthen muscles around the joint and keep it flexible. Avoid high-impact activities like running or jumping that stress the joint. A physical therapist can design a safe exercise plan for your specific joints.

Will losing weight help my osteoarthritis?

Yes, especially if you have OA in the knees, hips, or lower back. Losing even 5 to 10 pounds reduces stress on weight-bearing joints and can decrease pain. Weight loss combined with exercise is more effective than either alone, but results take several weeks to appear.

What should I do if pain medication is not working?

Talk to your doctor before increasing the dose or switching medications on your own. They may recommend injections, physical therapy, or a different medication. If one doctor's approach is not helping, a rheumatologist or pain specialist may have other options to discuss.