Acupuncture for Knee Pain: How TCM Treats the Joint That Does Everything

The Joint That Never Gets a Day Off

The knee is one of the hardest working joints in the body. It absorbs impact with every step, stabilises the body during sitting and standing, and bears the full load of your weight every time you climb stairs, squat, or walk on an uneven surface. Most people do not think about their knees until they start hurting. By the time the pain becomes a daily reality, the pattern behind it has usually been building for months or years.

At Piraluna, knee pain is one of the most common reasons people book an appointment. We see it in travelers who have spent months hiking, motorcycling, and pushing their bodies across Southeast Asia. We see it in older expats dealing with the gradual onset of osteoarthritis. We see it in active people who landed awkwardly or overtrained, and in people who sit for long hours and have lost the muscle strength that keeps the joint stable.

The presentations are different, but the question is usually the same: is there something that can actually help, or is this just something I have to manage for the rest of my life?

For most cases of knee pain, acupuncture offers a genuine answer.

How TCM Understands Knee Pain

Traditional Chinese Medicine does not treat knee pain as a single diagnosis. It looks at the pattern behind the pain, which shapes both the cause and the most effective treatment approach.

There are three main patterns that account for most knee pain presentations.

Kidney deficiency is the most common underlying pattern in people over 40. In TCM, the Kidney system governs the bones and is closely connected to the knees. The classical texts describe the knees as the "house" of the Kidney. When Kidney essence and energy decline with age or through chronic overwork, the knees begin to lose their structural support. The result is a gradual onset of aching, weakness, and stiffness that is typically worse after prolonged activity or when standing for a long time. The lower back is often involved as well, since the same deficiency pattern affects both areas. This pattern closely corresponds to what Western medicine diagnoses as early to moderate knee osteoarthritis.

Bi syndrome is the TCM term for obstruction in the joints caused by external pathogens, specifically Wind, Cold, and Dampness. These pathogens can invade the joint and block the normal flow of qi and blood, causing pain, stiffness, and reduced mobility. Cold type Bi syndrome produces a fixed, intense aching that worsens dramatically in cold weather and improves with warmth. Damp type Bi syndrome produces a heavy, swollen, dull aching that is worse in wet or humid conditions and can come with visible swelling in the joint. For anyone living in Koh Samui, the rainy season often triggers or worsens Damp Bi syndrome, particularly in people who already have some Kidney deficiency. Wind type Bi syndrome produces a more variable, migrating pain that moves between joints.

Blood stagnation is typically associated with injury, whether recent or from the past. In TCM, trauma disrupts the smooth flow of blood through the local area, causing a pattern of fixed, sharp pain that may be accompanied by swelling, bruising, or a sensation of tightness in the joint. Old injuries that were never fully resolved are a common source of persistent knee problems. The joint may have healed structurally but the stagnation pattern remains, contributing to recurring discomfort and reduced range of motion.

These three patterns frequently overlap. An older patient might have Kidney deficiency as the root with Damp Bi syndrome layered on top, triggered by the wet season or by sitting in strong air conditioning. A younger patient might have a Blood stagnation pattern from an old sports injury with Cold Bi syndrome flaring during rainy season. The treatment is adjusted to address whatever combination is present.

What Acupuncture Does for the Knee

Acupuncture works on the knee through several mechanisms that are supported by both TCM theory and modern research.

From a physiological perspective, acupuncture needles placed around the knee stimulate local blood flow, helping to clear inflammation and bring oxygen and nutrients to the joint. The knee has relatively poor blood supply compared to other tissues, which is one of the reasons cartilage repairs slowly. Anything that improves circulation to the area supports the natural healing process.

Acupuncture also triggers the release of endorphins and enkephalins, the body's own natural painkillers. These bind to the same receptors as pharmaceutical analgesics but without the side effects. The effect is not just masking the pain. It is genuinely changing the pain signal at the nervous system level.

Local needling around the joint reduces inflammation by modulating the release of pro inflammatory cytokines. For knee osteoarthritis specifically, research shows measurable reductions in inflammatory markers in the synovial fluid of the joint following acupuncture treatment.

From the TCM perspective, the goal is to restore the free flow of qi and blood through the knee and its associated meridians, address the underlying deficiency or excess pattern, and support the organ systems (Kidney, Liver, Spleen) that govern bone, tendon, and joint health.

The evidence base for acupuncture in knee pain is one of the strongest in the field. A large individual patient data meta analysis published by the Acupuncture Trialists Collaboration, drawing on data from nearly 18,000 patients across 39 high quality trials, concluded that acupuncture produced clinically significant improvements in knee pain that persisted well beyond the end of treatment. The effect size was substantially larger than what is typically achieved with anti inflammatory medication alone.

Points Used for Knee Pain

Your practitioner will select points based on your specific pattern, but several points are used consistently for knee conditions.

The Xiyan points, sometimes called the "eyes of the knee," are two small depressions on either side of the kneecap. Needling these points directly addresses local pain and inflammation in the joint. They are among the most commonly used points for any knee condition.

Stomach 36 (Zusanli) is located just below the outer edge of the knee, on the front of the lower leg. It is one of the most important points in the entire body, used to strengthen qi, support digestion, and tonify the whole system. For knee pain associated with Kidney deficiency or general weakness, this point is almost always included.

Spleen 9 (Yinlingquan) is on the inner edge of the lower leg just below the knee and is the primary point for clearing Dampness. If swelling, heaviness, or stiffness in the joint is part of the picture, this point will be central to the treatment.

Gallbladder 34 (Yanglingquan) is located on the outer side of the lower leg, just below the knee. In TCM, this is the "influential point" for all tendons and ligaments in the body. For knee pain involving the tendons, ligament laxity, or problems with the joint structure rather than just inflammation, this point is especially valuable.

Bladder 40 (Weizhong), found at the back of the knee, is a classical point for all knee disorders. The classical text says "for the back and knees, seek Weizhong." It is also used to release heat and clear Blood stagnation from the joint.

For Kidney deficiency patterns, points on the ankle such as Kidney 3 (Taixi) and Kidney 7 (Fuliu) are included to address the root cause rather than just the local symptoms.

Ashi points (tender spots directly on or around the joint) are often added based on where the patient feels the most sensitivity during assessment.

What a Session at Piraluna Looks Like

Your first session begins with a detailed consultation. Claire will ask about how and when the pain started, where exactly it is located (inside the joint, outer edge, behind the kneecap, at the back of the knee), what makes it better or worse, and what your activity level and general health look like. She will also check your pulse and look at your tongue, which provide important diagnostic information about your overall TCM pattern.

She will then palpate the knee itself, checking for areas of tenderness, warmth, swelling, and range of motion. This hands on assessment is part of what makes each treatment specific to you.

Based on everything gathered, she will design a treatment that addresses both the local knee pain and the underlying pattern driving it. You will lie comfortably while needles are placed around and sometimes away from the knee. Points below the knee on the lower leg and ankle are often included because they work through the meridian pathways rather than just locally.

For knee pain with a Cold or Damp pattern, moxibustion is frequently added. The warmth of the burning herb drives Cold and Damp out of the joint and tonifies the Kidney and Spleen. Many patients describe the combination of acupuncture and moxibustion on a cold, stiff knee as one of the most immediate sensations of relief they have experienced.

You will rest with the needles in for 20 to 40 minutes. Most patients feel noticeably looser in the knee by the time the session ends.

How Many Sessions Will You Need?

This depends on the type of pain, how long you have had it, and what the underlying pattern is.

For an acute flare from overuse, a strain, or a weather related worsening of an existing condition, three to six sessions often produce substantial relief. Treatments close together (two per week) tend to work better for acute presentations.

For chronic knee osteoarthritis or long standing pain, a course of eight to twelve sessions is more realistic, with sessions tapering from twice weekly to weekly to fortnightly as symptoms improve. Results build over time. The first two or three sessions establish the pattern, and the benefit accumulates.

For post injury recovery where Blood stagnation is the dominant pattern, treatment intensity depends on how recent the injury is and what conventional care has been applied. Fresh injuries with significant swelling may need a few sessions of gentle treatment before stronger local needling is appropriate.

Most patients notice meaningful improvement within three sessions. A few notice dramatic change after the very first treatment. For longstanding conditions, patience is part of the process, but the direction of change is usually clear early on.

What You Can Do Between Sessions

Acupuncture works best when combined with sensible daily habits that support the joint.

• Keep the knee warm. Cold is one of the primary drivers of knee pain in TCM. If you are sleeping in air conditioning or sitting in cold environments, keep the knee covered. This is especially important in Koh Samui's rainy season.
• Strengthen the supporting muscles. The quadriceps (front thigh) and glutes are the primary stabilisers of the knee joint. Gentle strengthening exercises reduce the load going through the joint itself. Your practitioner can recommend appropriate exercises based on your pattern and pain level.
• Avoid sitting for too long without moving. Prolonged sitting weakens the qi flow through the lower limbs and can stiffen the knee joint. Stand up and take a short walk every 30 to 40 minutes.
• Support Kidney function through diet. In TCM, foods that support the Kidney include black beans, walnuts, sesame seeds, bone broth, and dark coloured legumes. These are not cures on their own, but they align with the treatment direction for Kidney deficiency patterns.
• Avoid very cold drinks and raw foods. In TCM, Cold and Dampness are the primary external pathogens that worsen knee conditions. Iced drinks and raw, cold foods introduce internal Cold and Damp. Warm, cooked foods are consistently recommended for patients with Cold or Damp Bi syndrome patterns.

When the Pain Is Telling You Something

Not all knee pain is the same, and not all of it is simply age or wear and tear. In TCM, the knee's close connection to the Kidney means that persistent or worsening knee pain is often a signal about deeper energy reserves. It may be a sign that the body is under significant sustained pressure, whether from overwork, chronic stress, or an underlying deficiency that has been present for years without being addressed.

Treating the knee well is treating the whole system well. The improvements that patients see in their knees during a course of acupuncture are often accompanied by improvements in energy, sleep, and general vitality, because the root pattern is being addressed alongside the local symptom.

If your knee pain has been present for more than a few weeks, if it is affecting your ability to walk, exercise, or sleep comfortably, or if it keeps coming back despite rest and conventional treatment, it is worth getting a TCM assessment.

At Piraluna, Claire sees patients with all stages of knee pain, from acute post injury swelling to decades long osteoarthritis. Each case gets its own assessment and treatment plan. Book a session and find out what your specific pattern is and what it will take to change it.

Not ready to book yet? Send us a message or reach out on WhatsApp and describe what you are experiencing. We are happy to give you a sense of whether acupuncture is the right approach for your situation before you come in.