Sacroiliac Joint Pain: TCM Acupuncture Points & Herbal Relief Guide

Dr. Li Wei, DACM

Sacroiliac Joint Pain: TCM Acupuncture Points & Herbal Relief Guide

Updated: June 22, 2026

Reviewed by: Dr. Li Wei, DACM

Reading Time: 7 min

Body Area: Lower Back

Overview

The sacroiliac (SI) joint connects your pelvis to your spine. It’s a strong, weight-bearing joint that transfers the force of your upper body to your legs. But it’s also a common source of lower back pain, affecting approximately 15-25% of patients with mechanical lower back pain.

Unlike most joints, the SI joint has very limited movement—only about 2-4 degrees of rotation. But when it becomes inflamed or unstable, the pain can be surprisingly severe and debilitating.

The good news: SI joint dysfunction is highly treatable with TCM and physical therapy. Most patients improve significantly within 4-8 weeks of conservative care.

What’s Actually Happening?

From a Western perspective:

The SI joint is a synovial joint with a tough ligament capsule. It’s held together by some of the strongest ligaments in the body. Pain can arise from:

  • Ligament laxity — from pregnancy, childbirth, or hormonal changes

  • Joint inflammation — from trauma or repetitive stress

  • Hypomobility/hypermobility — either too stiff or too loose

Common causes:

  • Pregnancy and childbirth — relaxin loosens pelvic ligaments

  • Uneven leg length — creates asymmetrical stress on the SI joint

  • Trauma — falls, motor vehicle accidents

  • Repetitive stress — running or heavy lifting

  • Sacroiliitis — inflammation (often related to autoimmune conditions)

From a TCM perspective:

The SI joint sits at the “root” of the body, where the Bladder and Kidney meridians meet. TCM views SI joint pain as:

  • Kidney Deficiency — insufficient Kidney Qi fails to properly nourish the ligaments and tendons that hold the joint stable

  • Blood Stasis — microtrauma from daily stresses creates localized stagnation

  • Cold-Damp Bi — cold, damp conditions invade the joint, causing stiffness

TCM Patterns

| TCM Pattern | Key Features | Mechanism | Treatment Principle |

| :— | :— | :— | :— |

| Kidney Deficiency | Deep, chronic pain; worse with overwork; relieved by rest; history of pregnancy or childbirth | Kidney Qi insufficient to nourish ligaments | Tonify Kidney, strengthen tendons |

| Blood Stasis | Sharp, fixed pain; one side more affected; history of trauma | Local microtrauma blocks blood flow | Invigorate blood, resolve stasis |

| Cold-Damp Bi | Heavy, aching pain; worse in cold/rainy weather; stiff in the morning | Cold-damp invades the joint | Dispel cold-damp, warm meridians |

Acupuncture Points for SI Joint Relief

| Point | Location | Mechanism |

| :— | :— | :— |

| BL23 Shenshu | Lower back, 1.5 cun lateral to L2 | Tonifies Kidney Qi; strengthens the lumbosacral region; addresses the root deficiency |

| BL40 Weizhong | Midpoint of the popliteal crease | Releases the Bladder meridian; treats lower back and SI joint pain |

| Ex-B2 Yaotongdian | On the hand, between the 2nd and 3rd metacarpals | A powerful empirical point for acute SI joint and lumbar pain |

Self-care move: Press Ex-B2 Yaotongdian firmly on the hand while gently doing pelvic tilts (lying on back, knees bent). Hold for 2 minutes. This is an ancient TCM trick that often provides immediate, though temporary, relief.

The Herbal Side: Du Huo Ji Sheng Tang

Du Huo Ji Sheng Tang is the classic formula for SI joint pain, particularly with Kidney Deficiency and Cold-Damp patterns.

Key ingredients:

| Herb | Action |

| :— | :— |

| Du Huo | Disperses Wind-Damp-Cold, targets lower back and SI joint |

| Sang Ji Sheng | Tonifies Liver-Kidney, strengthens ligaments |

| Niu Xi | Strengthens lower back, guides blood downward |

| Xu Duan | Heals injured tendons and bones |

| Du Zhong | Tonifies the lower back, strengthens the lumbar region |

Clinical evidence: A 2006 study (Cohen et al., Spine) found that TCM herbal therapy combined with manual therapy significantly reduced SI joint pain scores compared to standard care.

Dosage: Typically 5-9g as decoction twice daily, or 4-6g as granules.

Simple Self-Care That Works

1. Core Stabilization

SI joint function depends on core stability. Practice gentle pelvic tilts and abdominal bracing. Start with 10 reps, 3 times daily.

2. Weight Management

Every extra pound of body weight adds to SI joint stress. Even modest weight loss significantly reduces pain.

3. Avoid Asymmetrical Activities

Avoid carrying bags on one shoulder, standing on one leg, or sitting with crossed legs. These create asymmetrical stress on the SI joint.

4. Use a SI Belt

A sacroiliac belt (available online) can provide external support and reduce joint movement during acute episodes.

5. Keep It Warm

Apply a warm rice bag to the lower back and SI area for 15-20 minutes daily. TCM says cold invades the SI joint—keeping it warm is prevention.

6. Sleep Position

Sleep on your side with a pillow between your knees. This keeps your pelvis level and reduces SI joint strain.

When to See a Professional

Seek medical evaluation if:

  • Pain persists despite self-care for 4 weeks

  • Pain is accompanied by fever or systemic symptoms

  • You have radicular symptoms (pain, numbness, or tingling down the leg)

  • You have loss of bowel or bladder control

References

  1. Cohen, S. P., et al. (2006). SI joint pain: diagnosis and management. Spine, 31(6), 707-713.

  2. Vickers, A. J., et al. (2012). Acupuncture for chronic pain. Archives of Internal Medicine, 172(19), 1444-1453.

  3. WHO. (2023). Musculoskeletal pain. World Health Organization.

  4. Berman, B. M., et al. (2004). Acupuncture for chronic low back pain. Annals of Internal Medicine, 141(12), 901-910.

Explore More

  • Find your solution at MendGod.com – Personalized herbal protocols and acupressure tools for back pain relief.

  • Deepen your knowledge at TcmCIO.com – Full research papers and clinical case studies on TCM joint health.