BL6 (Chengguang, “Receiving Light”) is an acupuncture point on the Bladder Meridian. It is located on the scalp, 2.5 cun posterior to the anterior hairline and 1.5 cun lateral to the midline, on a line connecting BL5 (Wuchu) and BL7 (Tongtian). It dispels wind, clears the head, benefits the eyes and nose, and calms the spirit.
On the scalp, 2.5 cun posterior to the anterior hairline and 1.5 cun lateral to the midline, on a line connecting BL5 (Wuchu) and BL7 (Tongtian).
Subcutaneous (transverse) insertion, 0.3-0.5 cun, typically directed posteriorly along the scalp.
Dispels wind, clears the head, benefits the eyes and nose, and calms the spirit.
Wind dizziness, head pain, vomiting, vexation of the heart, nasal congestion, inability to smell, mouth deviation, clear nasal discharge, white film over the eye, blurred vision from farsightedness, heat in the head, aversion to wind and cold, heat disease with absence of sweating, vomiting with vexation.
Chengguang is a key point on the upper Bladder channel for clearing wind and heat from the head. Its name, 'Receiving Light,' highlights its classical indication for improving vision, particularly for blurred vision and the early stages of cataracts ('white film'). It is also effective for various types of headaches, dizziness, and nasal disorders, especially those with a wind-heat component.
Classical text; the translation was prepared with AI and is not clinical advice.
《針灸大成》 Zhēnjiǔ Dàchéng — Great Compendium of Acupuncture & Moxibustion, 1601 · 卷八 · Source: Wikisource ↗
承光 五處後一寸五分。 銅人針三分，禁灸。 主風眩頭痛，嘔吐心煩，鼻塞不聞香臭According to this text, BL6 lies 1.5 cun behind BL5; it records needling 0.3 cun with moxa prohibited, and use for wind dizziness with headache, vomiting with vexation, and nasal blockage with loss of smell.
《針方六集》 Zhēnfāng Liùjí — Six Collections on Needling, Wu Kun, 1618 · 卷之一·神照集 · 足太陽膀胱經圖穴十四 · 足太陽膀胱經所發六十三穴 · Source: jicheng.tw ↗
承光二穴，在五處後一寸五分，夾督脈兩旁亦各一寸五分。 《針經》刺入三分，禁不可灸According to this text, BL6 lies 1.5 cun behind BL5 and 1.5 cun to each side of the governor vessel; the Zhenjing says to needle 0.3 cun and that moxa must not be applied.
《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 ↗
承光二穴，在五處後二寸，足太陽脈氣所發。 針入三分，不可灸According to this text, BL6 lies 2 cun behind BL5, where the qi of the foot taiyang vessel emerges; needle insertion is 0.3 cun and moxa is not permitted.
《類經圖翼》 Lèijīng Túyì — Illustrated Wings to the Classified Canon, Zhang Jiebin, 1624 · 卷七 · 經絡（五） · 足太陽膀胱經穴 · Source: jicheng.tw ↗
承光 在五處後一寸五分。 水熱穴論注曰：五處後一寸。 甲乙經五處後二寸。 刺三分，禁灸。 主治頭風風眩，嘔吐心煩，鼻塞不利，目翳口喎This text places BL6 1.5 cun behind BL5, noting variants of 1 cun and 2 cun in other works; it records needling 0.3 cun with moxa prohibited, and use for head wind, wind dizziness, vomiting with vexation, nasal blockage, eye screens and deviated mouth.
BL6 is one of 67 points on the Bladder Meridian. Nearby points:
BL6 (Chengguang) is located on the scalp, 2.5 cun posterior to the anterior hairline and 1.5 cun lateral to the midline, on a line connecting BL5 (Wuchu) and BL7 (Tongtian).
BL6 dispels wind, clears the head, benefits the eyes and nose, and calms the spirit. Common clinical indications include wind dizziness, head pain, vomiting, vexation of the heart, nasal congestion, inability to smell, mouth deviation, clear nasal discharge, white film over the eye, blurred vision from farsightedness, heat in the head, aversion to wind and cold, heat disease with absence of sweating, vomiting with vexation.
Subcutaneous (transverse) insertion, 0.3-0.5 cun, typically directed posteriorly along the scalp. Caution: The majority of classical texts explicitly forbid moxibustion on this point.
BL6 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).