BL48 (Yanggang, “Yanggang”) is an acupuncture point on the Bladder Meridian. It is located on the back, 3 cun lateral to the lower border of the spinous process of the tenth thoracic vertebra (T10), level with BL19 Danshu. It clears Damp-Heat from the Liver and Gallbladder, harmonizes the Middle Jiao, regulates the intestines, and alleviates pain.
On the back, 3 cun lateral to the lower border of the spinous process of the tenth thoracic vertebra (T10), level with BL19 Danshu.
Oblique insertion medially, 0.5 to 1.0 cun. Caution: Deep perpendicular or oblique lateral insertion carries a risk of pneumothorax.
Clears Damp-Heat from the Liver and Gallbladder, harmonizes the Middle Jiao, regulates the intestines, and alleviates pain.
Abdominal fullness and distention, borborygmus, abdominal pain, diarrhea, loose stools, reddish and difficult urination, body heat, yellow eyes, jaundice, poor appetite, lassitude, indigestion.
Yanggang is a key point for treating Damp-Heat affecting the Liver and Gallbladder system. It is particularly effective for digestive disorders presenting with abdominal distention, borborygmus, and diarrhea, especially when accompanied by signs of jaundice like yellow eyes. Its actions on the intestines also make it useful for regulating bowel movements and addressing urinary difficulty with heat signs.
Classical text; the translation was prepared with AI and is not clinical advice.
《針方六集》 Zhēnfāng Liùjí — Six Collections on Needling, Wu Kun, 1618 · 卷之五·紛署集 · 背自第二椎兩旁夾脊各三寸行至二十一椎下凡二十八穴第九 · Source: jicheng.tw ↗
陽綱二穴，主腸鳴腹痛，食不下，大便泄利不節，小便淋瀝，身熱目黃，腹脹怠惰The text records that BL48 was used for borborygmi and abdominal pain, inability to get food down, uncontrolled diarrhoea, dribbling urination, fever with yellow eyes, and abdominal distension with lassitude.
《醫學綱目·刺灸》 Yīxué Gāngmù · Cìjiǔ — Outline of Medicine: Needling and Moxibustion, Lou Ying, 1565 · 卷之八·陰陽臟腑部 · 穴法下 · Source: jicheng.tw ↗
陽綱二穴，在第十椎下兩旁，相去各三寸陷中，正坐取之，足太陽脈氣所發。 針入五分，可灸五壯It is located in the depression on both sides below the tenth vertebra, 3 cun from the midline, found sitting upright, according to this text, where the foot taiyang qi emerges; BL48 is needled 5 fen with up to 5 moxa cones.
《普濟方·針灸門》 Pǔjì Fāng · Zhēnjiǔ Mén — Formulas for Universal Relief: Acupuncture & Moxibustion Section, Zhu Su, 1406 · 卷四百十五 · 針灸門 · 背腧部第三行左右二十八穴 · Source: jicheng.tw ↗
陽綱二穴 在十椎下兩旁。 各三寸陷中。 正坐闊肩取之（亦作微俯取之）。 針五分。 灸三壯It is located in the depression 3 cun on each side below the tenth vertebra, according to this text, found sitting with the shoulders spread (or leaning slightly forward); BL48 is needled 5 fen with 3 moxa cones.
BL48 is one of 67 points on the Bladder Meridian. Nearby points:
BL48 (Yanggang) is located on the back, 3 cun lateral to the lower border of the spinous process of the tenth thoracic vertebra (T10), level with BL19 Danshu.
BL48 clears Damp-Heat from the Liver and Gallbladder, harmonizes the Middle Jiao, regulates the intestines, and alleviates pain. Common clinical indications include abdominal fullness and distention, borborygmus, abdominal pain, diarrhea, loose stools, reddish and difficult urination, body heat, yellow eyes, jaundice, poor appetite, lassitude, indigestion.
Oblique insertion medially, 0.5 to 1.0 cun. Caution: Deep perpendicular or oblique lateral insertion carries a risk of pneumothorax.
BL48 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).