Dachangshu (BL25)
Dachangshu (BL25), “Large Intestine Shu”, is a point on the Bladder meridian. It is point 25 of the 67 on the channel. Back-Shu of the Large Intestine: regulates the intestines and strengthens the lumbar region.
Location
On the lower back, 1.5 cun lateral to the lower border of the spinous process of the 4th lumbar vertebra (L4).
Functions according to tradition
Back-Shu of the Large Intestine: regulates the intestines and strengthens the lumbar region.
Traditional indications
- Low back pain
- Sciatica
- Constipation
- Diarrhea
- Abdominal distension
Indications described by tradition; they do not amount to proven clinical effectiveness for each one.
What its classification means
Located on the back, on the inner branch of the Bladder channel, at the level of the organ it relates to. Tradition prefers it for chronic disorders and disorders of the zang organs.
Precautions
No specific precautions are described beyond the general ones for acupuncture. Needling must always be performed by a trained professional.
Points on other channels with similar indications
They share several traditional indications with this point. Comparing them helps understand why one or the other is chosen.
- SP15 Daheng (Spleen): Abdominal distension, Constipation, Diarrhea
- ST25 Tianshu (Stomach): Abdominal distension, Constipation, Diarrhea
- SP3 Taibai (Spleen): Abdominal distension, Constipation, Diarrhea
- ST37 Shangjuxu (Stomach): Constipation, Diarrhea
- CV12 Zhongwan (Ren Mai (Conception Vessel)): Abdominal distension, Diarrhea
- SP9 Yinlingquan (Spleen): Abdominal distension, Diarrhea
Point profile
- Code
- BL25
- Pinyin name
- Dà Cháng Shù
- Characters
- 大肠俞
- Translation
- Large Intestine Shu
- Meridian
- Bladder
- Element
- Water
- Classification
- Back-Shu
- Topics
- Lower Back, Intestine
Health notice. Educational and study content. It describes concepts of Traditional Chinese Medicine and does not replace diagnosis or treatment by a healthcare professional. Needling, medicinal herbs and invasive techniques must be applied by trained professionals. Safety guide.
