What doctors can do to reduce knee arthritis pain
Knee arthritis treatment starts with slowing damage and managing pain so you can move without hurting. Your doctor has several tools: anti-inflammatory medications (like ibuprofen or naproxen), injections directly into the knee joint, physical therapy to strengthen the muscles around your knee, and in some cases surgery. The right approach depends on how far your arthritis has progressed, which your doctor can see on an X-ray, and how much pain is affecting your daily life.
Many people start with over-the-counter pain relievers and see real improvement. If that is not enough, your doctor may prescribe stronger anti-inflammatory drugs or recommend a steroid injection into the knee joint itself — this can reduce swelling and pain for weeks or months. Some people benefit from injections of hyaluronic acid (a substance that mimics the fluid in healthy joints), though results vary and insurance coverage differs by plan.
Physical therapy is often the most effective long-term treatment because it addresses the root problem: weak muscles around the knee let the joint do more work than it should. A physical therapist teaches you exercises to strengthen your quadriceps (the muscle on top of your thigh) and the muscles on the back and sides of your leg. Stronger muscles take pressure off the joint itself.
Key Takeaways
- Anti-inflammatory medications, injections, and physical therapy are the first treatments doctors try, and many people get significant relief without surgery.
- Steroid injections into the knee joint can reduce pain and swelling for weeks or months, but they are not permanent solutions.
- Physical therapy that strengthens the muscles around your knee is often more effective long-term than medication alone because it reduces the load on the joint.
- Weight loss, if you are overweight, reduces stress on your knee joint and can slow arthritis progression.
- Knee replacement surgery is an option when other treatments stop working, but it is not the first step.
How weight and activity affect knee arthritis
Every pound of body weight puts extra stress on your knees when you walk or stand. Losing weight — even 5 to 10 pounds — can noticeably reduce knee pain because your joint has less load to carry. This is not about appearance; it is about mechanical relief. Your doctor or a registered dietitian can discuss realistic weight loss goals that fit your life.
Activity matters too, but the goal is not to stop moving. Staying still actually makes arthritis worse because your joint stiffens and the muscles around it weaken. Instead, you want low-impact movement: walking on flat ground, swimming, water aerobics, or stationary cycling. These activities keep your knee moving and your muscles strong without the jarring impact of running or jumping. Your physical therapist can recommend specific exercises and tell you how much activity your knee can handle right now.
Daily habits that protect your knee
Small changes throughout your day add up. Wear supportive shoes with good cushioning — avoid flat shoes or high heels that change how your knee bends. Use ice after activity if your knee swells; explore it for 15 to 20 minutes. Use heat before activity if your knee is stiff in the morning — a warm shower or heating pad for 15 minutes can help you move more easily.
Assistive devices reduce stress on your knee without shame or permanent commitment. A cane in the hand opposite your bad knee (so if your right knee hurts, hold the cane in your left hand) can cut the load on that joint by 20 to 30 percent. A knee brace or sleeve provides support and warmth. Compression sleeves are inexpensive and available without a prescription. Shoe inserts (orthotics) can be custom-made by a podiatrist or purchased over-the-counter to correct how your foot strikes the ground, which changes the angle at your knee.
At home, arrange your space so you do not have to climb stairs repeatedly. Keep frequently used items at waist height so you do not have to bend or squat. Sit in a firm chair with armrests so you can push yourself up without putting all your weight through your knees. A shower chair or grab bars in the bathroom make bathing safer and less painful.
When to consider knee replacement surgery
Knee replacement is not the first treatment, but it becomes an option when arthritis is severe and other treatments have stopped working. Severe means your X-ray shows significant cartilage loss, you have chronic pain even at rest or at night, and your quality of life is affected — you cannot walk the distance you want, you cannot do activities that matter to you, or you are taking high doses of pain medication.
The surgery replaces the damaged surfaces of your knee joint with metal and plastic components. Most people who have the surgery report significant pain relief and improved function. Recovery takes several months of physical therapy, and you will need to modify some high-impact activities afterward (like running or jumping), but many people return to walking, swimming, and other activities they enjoy.
Your orthopedic surgeon will discuss whether you are a good candidate. Age alone is not a barrier — people in their 80s have successful knee replacements. What matters is your overall health, your ability to do physical therapy after surgery, and whether the pain is truly limiting your life. This is a decision to make with your doctor, not a rushed choice.
Medications that reduce inflammation and pain
Over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, naproxen, and aspirin reduce both pain and swelling. They work best when you take them regularly rather than only when pain is severe. If you take them daily, your doctor should monitor you because long-term NSAID use can affect your stomach and kidneys, especially if you are over 65 or have heart or kidney disease.
If over-the-counter NSAIDs do not work or you cannot take them safely, your doctor may prescribe a stronger NSAID or a different class of pain reliever. Acetaminophen (Tylenol) reduces pain but does not reduce inflammation, so it is less effective for arthritis than NSAIDs. Topical creams and gels that you rub on your skin over the knee can help with mild pain and have fewer side effects than pills because less medication enters your bloodstream.
Some people benefit from prescription medications like duloxetine (Cymbalta), which was originally developed for depression but also reduces chronic pain signals. Your doctor can discuss which medication fits your health history and other drugs you take.
Injections and other in-office treatments
Corticosteroid injections deliver anti-inflammatory medication directly into your knee joint. The injection itself takes a few minutes, and you may feel relief within a few days. The effect usually lasts 6 to 12 weeks. Most insurance plans cover these injections, though the number allowed per year varies. Your doctor can tell you how many times per year your plan covers them.
Hyaluronic acid injections (sometimes called viscosupplementation) mimic the fluid that lubricates a healthy knee. A series of three to five injections given weekly may reduce pain and improve movement. Results are less dramatic than steroid injections, and insurance coverage varies widely — some plans cover them, others do not. Ask your doctor whether your plan covers this treatment and what the out-of-pocket cost would be.
Platelet-rich plasma (PRP) and stem cell injections are newer treatments that show promise in research but are not yet standard care. They are often not covered by insurance and can be expensive. Talk with your doctor about whether these treatments are appropriate for your situation and what the evidence shows for your type of arthritis.
Questions to ask your doctor about knee arthritis
Before your appointment, write down what activities hurt most and when your pain is worst. Ask your doctor: What stage is my arthritis at? Which treatment would you recommend first, and why? How long should I try this treatment before we know if it is working? What are the side effects I should watch for? Should I see a physical therapist, and do you have a referral? If this treatment does not work, what is the next step?
Also ask: How much weight loss would help my knee? What activities are safe for me right now? Do I need any assistive devices like a cane or brace? When should I come back to see you? And if you are considering surgery: What would my recovery look like? How long before I can do the activities I want to do again?
Frequently Asked Questions
Can knee arthritis get better on its own?
Arthritis does not reverse, but pain and function can improve significantly with treatment. Many people get substantial relief from medication, physical therapy, and lifestyle changes without ever needing surgery. The goal is to slow progression and manage symptoms so you can do the things that matter to you.
How often can I get steroid injections in my knee?
Most doctors limit steroid injections to three or four per year because repeated injections can damage cartilage over time. Your doctor will recommend a schedule based on how well the injections work for you and your overall health. Insurance coverage also varies by plan.
Will physical therapy hurt my knee more?
Physical therapy should not increase your pain long-term. A good physical therapist starts gently and builds gradually. You may feel some discomfort during exercises, but pain should not be severe, and it should not linger after you leave. Tell your therapist when ready if something hurts in a sharp or wrong way.
What is the difference between a knee brace and a compression sleeve?
A compression sleeve is a stretchy fabric that provides warmth and mild support and is straightforward to put on and take off. A knee brace is more rigid and provides stronger support but can be bulkier. Both can help reduce pain and swelling. Your physical therapist can recommend which one fits your needs.
If I have knee replacement surgery, will I need another one later?
Most knee replacements last 15 to 20 years or longer. Some people do need a second surgery (called revision surgery) if the first replacement wears out, but many do not. Your age at the time of surgery and how active you are afterward affect how long it lasts.