BL24 (Qì Hǎi Shū, “Qì Hǎi Shū”) is the Back-Shu point point of the Bladder Meridian. It is located on the lower back, 1.5 cun lateral to the lower border of the spinous process of the third lumbar vertebra (L3). It strengthens the lower back, regulates the lower jiao, and treats hemorrhoids.
On the lower back, 1.5 cun lateral to the lower border of the spinous process of the third lumbar vertebra (L3).
Perpendicular-oblique insertion towards the spine, 1.0 to 1.5 cun. Deep needling carries a risk of injuring the kidney, so caution is advised.
Strengthens the lower back, regulates the lower jiao, and treats hemorrhoids.
Low back pain, hemorrhoid disease, bloody dysentery, hemorrhoidal fistula.
Qi Hai Shu is a key local point for low back pain, particularly when associated with deficiency in the lower jiao. Its name connects it to the "Sea of Qi" (CV6), underscoring its role in fortifying the source Qi and essence. Classically, it is also a primary point for treating various types of hemorrhoids and related bleeding, making it useful for disorders of the large intestine and anus.
Classical text; the translation was prepared with AI and is not clinical advice.
《針灸逢源》 Zhēnjiǔ Féngyuán — Sources of Acupuncture & Moxibustion, Li Xuechuan, 1815 · 卷四 · 經穴考正 · 足太陽膀胱經穴考 · Source: jicheng.tw ↗
氣海腧 在十五椎下兩旁開脊中二寸。 （針三分灸五壯○甲乙經無此穴）治腰痛痔漏According to this text, BL24 lies on both sides below the fifteenth vertebra, 2 cun from the spine's centre; needle 3 fen, moxa 5 cones. It notes the point is absent from the Jiayi Jing and records use for low back pain and anal fistula.
《針灸大成》 Zhēnjiǔ Dàchéng — Great Compendium of Acupuncture & Moxibustion, 1601 · 卷八 · Source: Wikisource ↗
氣海俞 十五椎下兩旁，相去脊各一寸五分，主腰痛痔漏。 針三分，灸五壯It is located on both sides below the fifteenth vertebra, 1.5 cun from the spine, according to this text; BL24 was used for low back pain and anal fistula, needled 3 fen with 5 moxa cones.
《醫學入門》 Yīxué Rùmén — Introduction to Medicine, Li Chan, 1575 · 经穴起止 · Source: Wikisource ↗
气海俞十五节外一寸半。 主腰痛，痔病According to this text, BL24 lies 1.5 cun lateral to the fifteenth vertebra and was used for low back pain and haemorrhoid disorders.
BL24 is one of 67 points on the Bladder Meridian. Nearby points:
BL24 (Qì Hǎi Shū) is located on the lower back, 1.5 cun lateral to the lower border of the spinous process of the third lumbar vertebra (L3).
BL24 strengthens the lower back, regulates the lower jiao, and treats hemorrhoids. Common clinical indications include low back pain, hemorrhoid disease, bloody dysentery, hemorrhoidal fistula.
Perpendicular-oblique insertion towards the spine, 1.0 to 1.5 cun. Deep needling carries a risk of injuring the kidney, so caution is advised.
BL24 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).