Knee Pain: Common Causes and the Traditional Chinese Medicine Approach

Knee Pain: Common Causes and the Traditional Chinese Medicine Approach

Does your knee hurt when you climb stairs, squat down, or simply walk? You're in good company: knee pain is one of the most common musculoskeletal complaints in adults of every age, and it can turn everyday activities like taking a walk or getting up from a chair into a real challenge.

The good news is that there are many ways to approach it, and Traditional Chinese Medicine (TCM), with tools such as acupuncture, moxibustion, and cupping therapy, is one of the complementary options that draws the most interest. In this article we explain, in plain language and without jargon, what lies behind that pain from the Eastern perspective and how well-practiced acupuncture can help you.

Why Does My Knee Hurt? The Most Common Causes

The knee is a complex joint: it bears a large share of our body weight and takes part in almost every movement of the legs. That is why it is exposed to constant wear over a lifetime. Here are some of the most common causes:

Joint wear (osteoarthritis): over the years, the cartilage that cushions the joint thins out and loses its protective capacity.

Overuse or sports injury: too much training, abrupt movements, or sudden twisting can irritate tendons, ligaments, or cause the well-known "runner's knee."

Excess weight: every extra kilo increases the load the joint carries with each step.

Meniscus or ligament injuries: often after blows, falls, or twisting of the leg.

Circulatory or inflammatory problems: some joint diseases may show up first in the knee.

It's important to be clear that knee pain can have very different causes, and acupuncture is not a diagnosis: before starting any treatment, it's a good idea to have a doctor or physical therapist evaluate your case, especially if there is significant swelling, instability, or if the pain appears after an injury.

How Does Traditional Chinese Medicine View Knee Pain?

TCM has thousands of years of history and a way of looking at the body that is very different from the Western one, although the two can complement each other well. Its basic principles are more intuitive than they seem:

Qi (pronounced "chee"): the vital energy that, according to this tradition, flows through the whole body and keeps it functioning. When Qi flows freely, we feel well; when it becomes blocked or weak, symptoms appear.

Yin and Yang: two opposing and complementary forces (rest and activity, warmth and coolness, dampness and dryness) that must be kept in balance. A prolonged imbalance favors the appearance of ailments.

Blood: in TCM it doesn't just carry oxygen; it also nourishes and "lubricates" the tissues. When circulation is insufficient, the joint becomes stiff and painful.

Internal Dampness: when digestion struggles or the body doesn't clear fluids well, a kind of "Dampness" can build up and settle in the joints, causing heaviness and swelling.

Cold and internal Heat: Cold "contracts" and worsens pain that improves with warmth; internal Heat shows up as hot, red, inflamed joints.

From this perspective, a chronic, dull knee pain that gets worse in the cold and improves with warmth suggests a problem of circulation and energy that has become insufficient over time. A red, hot, very swollen knee, on the other hand, would point to an excess of internal Heat. These are not rigid labels; they simply help the practitioner decide which techniques suit you best.

How Can Acupuncture Help With Knee Pain?

Acupuncture involves inserting very fine needles into specific points on the body, always using sterile, single-use materials. Its aim is to stimulate the circulation of Qi and Blood, relax tense tissues, and help the body regain its balance.

Applied to knee pain, acupuncture can help in several ways:

Ease the sensation of pain, by promoting the release of the body's own natural substances that modulate it.

Relax the muscles around the joint, which often tighten defensively and perpetuate the discomfort.

Improve local circulation, which is especially useful for cold, tense pain or pain that improves with warmth.

Reduce the feeling of heaviness and swelling when there is a buildup of Dampness.

And what does the science say? Several studies suggest that acupuncture may be useful as a complement for musculoskeletal and joint pain, although the evidence is mixed and the quality of the trials varies. The most reasonable approach is to see it as one more tool within a comprehensive plan (exercise, weight management, physical therapy and, if appropriate, medical treatment) rather than as a miraculous stand-alone solution.

Swollen Knee, Tendinitis, Sprain, or Arthritis: Does the Approach Change?

Not every "aching knee" is the same, and acupuncture adapts to the cause:

Swollen knee (puffy, warm, sometimes with fluid): before treating it, you need to know why it is swollen. If it is a recent acute flare-up, a medical evaluation should come first; once a cause that requires a different approach has been ruled out, acupuncture can help calm the local Heat and the swelling.

Knee tendinitis (pain in one specific spot that gets worse with repeated loading or bending, typical in runners or after overuse): it tends to respond well because the pain is localized and there is a clear tissue to treat; we work on both the irritated area and the tension in the muscles that pull on that tendon.

Knee sprain (after a twist or a blow, with instability): in the acute phase, rest and evaluation of the ligament come first; acupuncture comes in afterward, for the residual pain and the stiffness that sometimes remains after immobilization.

Knee arthritis (inflammatory, with a different origin from wear-and-tear osteoarthritis): here, follow-up with a rheumatologist is essential; acupuncture can be a supportive aid for pain and stiffness, but never a replacement for the underlying treatment.

In all four cases the starting point is the same: first identify what is behind the pain, and don't treat a swollen or unstable knee blindly without knowing its cause.

Acupressure for the Knee: Points You Can Try at Home

If you're looking for something to do yourself between sessions, or while you decide whether to see a professional, acupressure (pressing with a finger, without needles) on a few classic knee points can offer gentle relief:

Xiyan (EX-LE5) and Dubi (ST35), the so-called "eyes of the knee": they are right on either side of the patellar tendon, in the two hollows that form when you bend your leg. Press with your thumb and index finger at the same time, gently and steadily, for 30 seconds to a minute.

Yanglingquan (GB34), on the outer side of the leg, just below the head of the fibula: a classic point for joint and muscle stiffness throughout the limb.

Zusanli (ST36), four finger-widths below the kneecap, on the outer edge of the tibia: it supports the overall energy of the leg and is usually used together with the points above.

Take it easy, without aiming for intense pain, a couple of times a day. Acupressure does not replace needle acupuncture or a medical evaluation, but it is a safe way to "do something" while you decide on the next steps, unless the knee is very swollen, unstable, or the pain is acute after a blow: in those cases, see a doctor first.

What Other Chinese Medicine Techniques Are Used?

In addition to needles, the acupuncturist may combine other traditional techniques:

Moxibustion: application of gentle heat to specific areas through the controlled burning of an herb called mugwort. It is especially valued for cold, chronic pain that improves with warmth.

Cupping: small cups that create suction on the skin to promote superficial circulation and relax the tissues.

Traditional Chinese massage (tuina): manipulations and pressure on muscles and joints to release tension.

Dietary recommendations: in TCM, food influences internal Dampness and vital energy; the practitioner may suggest small adjustments that fit your constitution.

All of these techniques are adapted to each person: there are no two identical knees, and no two people with the same history.

Benefits of Taking a Comprehensive Approach to Knee Pain

When combined with healthy lifestyle habits, the Traditional Chinese Medicine approach offers some interesting advantages:

It is a personalized treatment: we take into account your type of pain, whether it gets worse in the cold, your digestion, your overall energy...

It is usually well tolerated, with little discomfort during the session (most people barely feel the needles).

It does not create dependence on medication and can be combined with other treatments.

It also supports overall well-being: you may notice improvements in sleep, energy, or mood, factors that directly influence how pain is perceived.

Does Acupuncture Have Contraindications?

Acupuncture is safe when performed by a trained, licensed professional using sterile, single-use materials. Even so, there are important precautions:

Pregnancy: some areas are treated with special care during pregnancy; always tell your practitioner.

Anticoagulants: if you take blood-thinning medication, the risk of small bruises is higher, although in practice it is usually minimal.

Infectious diseases or clotting disorders: each case should be assessed individually.

Acute pain after a hard blow or with warning signs (fever, a very warm and swollen joint, inability to put weight on the foot): see your doctor first.

Remember: acupuncture and Traditional Chinese Medicine are a complement to conventional medicine, never a substitute. If the pain persists, gets worse, or limits your daily life, consult a health care professional.

Frequently asked questions

How many acupuncture sessions do I need for knee pain?

It depends on each case. Recent, localized pain tends to respond better than chronic pain of many years' duration. As a general guide, many people notice changes in the first few sessions, but a treatment plan usually spans several weeks. Your acupuncturist will give you a realistic assessment.

Does acupuncture hurt?

In most cases you barely feel it: the needles are extremely thin, much thinner than those used for drawing blood. The most common sensation is a slight initial prick or a feeling of warmth or heaviness around the point, which quickly fades.

Can I combine acupuncture with medication or physical therapy?

Yes, and in fact that is the best approach. Acupuncture fits well within a comprehensive plan alongside therapeutic exercise, physical therapy, or whatever medical treatment your doctor has prescribed. Always let both professionals know what you're doing.

Does acupuncture work for knee osteoarthritis?

It is one of the most common reasons people seek treatment. Several studies suggest it may help reduce pain and improve function, although the scientific evidence is mixed and it never stops the wear of the cartilage. It's best to keep realistic expectations and combine it with exercise and weight management.

What can I do at home to take care of my knees?

Avoid excesses (weight, repetitive impact), do gentle exercise such as swimming or cycling, apply local heat if your pain improves with it, and consult a professional if you notice swelling or instability. Small, sustained changes make a big difference.

When should I see a doctor before trying acupuncture?

If the pain appears after a hard blow, if the knee swells a lot or is very warm, if you have trouble putting weight on the foot, or if the pain doesn't improve in several weeks, see your doctor first to rule out injuries that require a different kind of care.

Conclusion

Knee pain has many causes, from simple wear and tear to overuse or sports injuries. Traditional Chinese Medicine offers a complementary, personalized perspective: it doesn't stop at the joint, but also considers your circulation, your digestion, your energy, and your overall balance. Acupuncture and its associated techniques can be a valuable support for easing discomfort and regaining mobility, always within a comprehensive plan overseen by professionals. If your knee is limiting your life, don't write it off as normal: get it evaluated and start taking care of yourself today.

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Published: Sep 21, 2026