Bladder 40

BL40 Acupressure Pointessential oils with acupressure

Use the Water Aroma Acu-Stick® to activate points on the Urinary Bladder Channel. Acupressure point Bladder 40 (BL 40) is a prized point for obstructions of the Urinary Bladder channel causing back pain. It is also an important point for treating strokes in Chinese medicine.

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Location of Acupressure Point BL 40

On the middle point directly behind the knee cap on the back of the leg on the midpoint of the transverse crease of the popliteal fossa between the two tendons, biceps femoris and muscle semitendinosus. Apply the Water Element Aroma Acu-Stick® to Acupressure Point Bladder 40 to activate the healing potential of the pressure point.





Traditional Chinese Medicine Indications and Acupressure Point Combinations of UB 40lower back Chinese herb remedy

Lower Back Pain Relief

Back of the Knee Pain Relief

Stroke Recovery


Other Name(s) of BL Acupuncture Point Urinary Bladder 40

  • Weizhong
  • Urinary Bladder 40 (UB40)
  • Bent Middle
  • Supporting Middle
  • Middle of the Crook

Traditional Chinese Medicine Classifications of Acupuncture Point BL 40

  • Lower He Sea-Earth Point of Bladder Channel
  • Ma Dan Yang-Heavenly Star Point
  • Gao Wu Command Point of Lower and Upper Back Regions

Traditional Chinese Medicine Actions of Acupressure Point BL 40

  • Resolves Damp
  • Removes Obstructions from the Bladder Channel
  • Activates UB Channel and Alleviates Pain
  • Clears Heat
  • Cools Blood
  • Benefits the Bladder
  • Benefits the Back and Knees
  • Relaxes the Tendons
  • Eliminates Summer Heat
  • Breaks Up Blood Stagnation

Cautions: Do not use acupressure as self-care when pregnant without the guidance of a licensed acupuncturist. Always discuss new treatment modalities with your local health care professional.



Murphy SL, Harris RE, Keshavarzi NR, Zick SM. Self-Administered Acupressure for Chronic Low Back Pain: A Randomized Controlled Pilot Trial. Pain Med. 2019 Dec 1;20(12):2588-2597. doi: 10.1093/pm/pnz138. PMID: 31237610.

Chen KH, Hsiao KY, Lin CH, Chang WM, Hsu HC, Hsieh WC. Remote effect of lower limb acupuncture on latent myofascial trigger point of upper trapezius muscle: a pilot study. Evid Based Complement Alternat Med. 2013;2013:287184. doi: 10.1155/2013/287184. Epub 2013 Apr 28. PMID: 23710218; PMCID: PMC3655618.

Sherman KJ, Cherkin DC, Hogeboom CJ. The diagnosis and treatment of patients with chronic low-back pain by traditional Chinese medical acupuncturists. J Altern Complement Med. 2001 Dec;7(6):641-50. doi: 10.1089/10755530152755199. PMID: 11822612.

Yip YB, Tse SH. The effectiveness of relaxation acupoint stimulation and acupressure with aromatic lavender essential oil for non-specific low back pain in Hong Kong: a randomised controlled trial. Complement Ther Med. 2004 Mar;12(1):28-37. doi: 10.1016/j.ctim.2003.12.003. PMID: 15130569.

Horng HC, Kuo CP, Cherng CH, Yeh CC, Wang TC, Liaw WJ, Ko SC, Wong CS. The effects of collateral meridian therapy for knee osteoarthritis pain management: a pilot study. J Manipulative Physiol Ther. 2013 Jan;36(1):51-6. doi: 10.1016/j.jmpt.2012.12.003. PMID: 23380214.

Yip YB, Tam AC. An experimental study on the effectiveness of massage with aromatic ginger and orange essential oil for moderate-to-severe knee pain among the elderly in Hong Kong. Complement Ther Med. 2008 Jun;16(3):131-8. doi: 10.1016/j.ctim.2007.12.003. Epub 2008 Mar 4. PMID: 18534325.

This information has not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.