Bladder Meridian 足太阳膀胱经

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng, 足太阳膀胱经) is a primary channel in acupuncture and Traditional Chinese Medicine, associated with the Water phase, Yang in polarity, interiorly-exteriorly paired with the Kidney. As the largest Yang channel, the Bladder channel governs the exterior and defends against external pathogens, particularly wind and cold.

Chinese足太阳膀胱经
PinyinZú Tài Yáng Páng Guāng Jīng
Groupprimary
ElementWater
Yin / YangYang
OrganBladder
Paired organKidney
Organ clock3pm-5pm
Number of points67

Channel pathway

The Bladder channel originates at the inner canthus (BL1), ascends over the forehead to the vertex (GV20), where it branches to the brain. A primary branch descends along the posterior neck, paraspinally down the back, through the gluteal region, and down the posterior thigh. It continues along the posterior leg to the lateral malleolus, then along the lateral foot to terminate at the tip of the little toe (BL67). An internal branch from the lumbar region connects to the Bladder organ.

Physiology & functions

As the largest Yang channel, the Bladder channel governs the exterior and defends against external pathogens, particularly wind and cold. It influences the brain, eyes, and spine, playing a crucial role in fluid metabolism and the storage and excretion of urine. Its back-shu points directly regulate the Zang-fu organs.

When the channel is disordered

Disorders manifest as headaches, neck stiffness, back pain, sciatica, and pain along its entire pathway. Eye problems like lacrimation, blurred vision, and nasal congestion are common. Urinary dysfunction, mental-emotional issues, and chills or fever due to external invasion can also indicate Bladder channel imbalance.

Key & command points

All points on the Bladder channel (67)

Frequently asked questions

What is the pathway of the Bladder Meridian?

The Bladder channel originates at the inner canthus (BL1), ascends over the forehead to the vertex (GV20), where it branches to the brain. A primary branch descends along the posterior neck, paraspinally down the back, through the gluteal region, and down the posterior thigh. It continues along the posterior leg to the lateral malleolus, then along the lateral foot to terminate at the tip of the little toe (BL67). An internal branch from the lumbar region connects to the Bladder organ.

What does the Bladder Meridian do in TCM?

As the largest Yang channel, the Bladder channel governs the exterior and defends against external pathogens, particularly wind and cold. It influences the brain, eyes, and spine, playing a crucial role in fluid metabolism and the storage and excretion of urine. Its back-shu points directly regulate the Zang-fu organs.

How many acupuncture points are on the Bladder Meridian?

The Bladder Meridian has 67 acupuncture points, from BL1 to BL67.

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.