BL58 (Feiyang, “Feiyang”) is the Luo-Connecting Point point of the Bladder Meridian. It is located on the posterior aspect of the lower leg, 7 cun directly superior to the prominence of the lateral malleolus, just lateral to the inferior border of the gastrocnemius muscle. It connects the Bladder and Kidney channels, dispels wind-damp from the channel, clears heat, alleviates pain in the lumbar region and leg, and treats hemorrhoids.
On the posterior aspect of the lower leg, 7 cun directly superior to the prominence of the lateral malleolus, just lateral to the inferior border of the gastrocnemius muscle.
Perpendicular insertion 1.0 to 1.5 cun.
Connects the Bladder and Kidney channels, dispels wind-damp from the channel, clears heat, alleviates pain in the lumbar region and leg, and treats hemorrhoids.
Headache, dizziness, vertigo, back pain, lumbar pain as if broken, gouty arthritis (Li Jie Feng) with sweating, inability to flex and extend the toes, rebellious qi, epistaxis (nosebleed), stuffy nose, hemorrhoids (especially 'wild chicken hemorrhoid'), pain in the perineum, epilepsy, malarial disorders, body pain.
As the Luo-Connecting point of the Bladder channel, Feiyang is classically indicated for conditions of both excess and deficiency. Excess is described as stuffy nose, headache, and back pain, while deficiency presents as nosebleed. It is a key distal point for severe lumbar pain, especially when described as feeling 'broken,' and is also frequently cited for treating various types of hemorrhoids and pain in the perineal region. Its ability to treat dizziness and vertigo highlights its function in managing disturbances in the upper body via the extensive Bladder channel.
Classical text; the translation was prepared with AI and is not clinical advice.
《針灸甲乙經》 Zhēnjiǔ Jiǎyǐ Jīng — Systematic Classic of Acupuncture & Moxibustion, c. 256–282 · 卷02 · Source: Wikisource ↗
足太陽之別，名曰飛揚，去踝七寸，別走少陰，實則窒鼻（一雲鼽窒）頭背痛，虛則鼽衄，取之所別The text records that the diverging branch of the foot taiyang is called Feiyang (BL58), 7 cun above the ankle, branching to the shaoyin; when full there is nasal blockage and headache with back pain, when empty there is nosebleed, and the point of the branch is used.
《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 ↗
飛揚（一名厥陽） 在足外踝略後。 量上七寸陷中。 足太陽絡別走少陰（針三分灸三壯）治痔痛腳痠According to this text, BL58 lies slightly behind the outer ankle, in a hollow 7 cun above it, as the connecting branch of foot taiyang to shaoyin; it records needling 0.3 cun, 3 moxa cones, and use for painful haemorrhoids and aching legs.
《普濟方·針灸門》 Pǔjì Fāng · Zhēnjiǔ Mén — Formulas for Universal Relief: Acupuncture & Moxibustion Section, Zhu Su, 1406 · 卷四百十六 · 針灸門 · 足太陽膀胱經左右三十六穴 · Source: jicheng.tw ↗
飛揚二穴 一名厥陽。 在外踝上九寸（明堂千金。 並云七寸）。 針三分。 灸三壯According to this text, BL58 (also called Jueyang) lies 9 cun above the outer ankle, while other sources give 7 cun; it records needling 0.3 cun and 3 moxa cones.
《醫宗金鑑·刺灸心法要訣》 Yīzōng Jīnjiàn · Cìjiǔ Xīnfǎ Yàojué — Golden Mirror of Medicine: Essential Teachings on Acupuncture & Moxibustion, Wu Qian et al., 1742 · 卷一 · 十二經表裡原絡總歌 · 腎經表裡原絡穴主治歌 · Source: jicheng.tw ↗
膀胱表之絡穴飛揚，二穴應刺之證即：大腹、少腹、脊背疼痛，大便結燥，臍下氣逆上衝，口渴吐血，兩足寒冷The text records that BL58, the connecting (luo) point of the bladder, was needled for pain of the greater and lower abdomen, spine and back, dry constipation, qi rising upward from below the navel, thirst with vomiting of blood, and cold feet.
BL58 is one of 67 points on the Bladder Meridian. Nearby points:
BL58 (Feiyang) is located on the posterior aspect of the lower leg, 7 cun directly superior to the prominence of the lateral malleolus, just lateral to the inferior border of the gastrocnemius muscle.
BL58 connects the Bladder and Kidney channels, dispels wind-damp from the channel, clears heat, alleviates pain in the lumbar region and leg, and treats hemorrhoids. Common clinical indications include headache, dizziness, vertigo, back pain, lumbar pain as if broken, gouty arthritis (Li Jie Feng) with sweating, inability to flex and extend the toes, rebellious qi, epistaxis (nosebleed), stuffy nose, hemorrhoids (especially 'wild chicken hemorrhoid'), pain in the perineum, epilepsy, malarial disorders, body pain.
Perpendicular insertion 1.0 to 1.5 cun.
BL58 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).