![[Happy Healthy Life] The Little Toe’s Big Miracle: Zhiyin (BL67)—The Master Switch for Everything from Breech Correction to Headache Relief](https://happyhealthylife.cv/wp-content/uploads/2026/02/【樂健生活】小腳趾的大奇蹟：至陰穴（BL67）——從轉胎位到緩解頭痛的萬能開關-750x500.jpg)
Introduction to the Point The Zhiyin acupoint (BL67) is located on the lateral (outer) side of the small toe, approximately 0.1 cun (a traditional unit of measurement) posterior to the corner of the nail. It serves as the terminus of the Bladder Meridian of Foot-Taiyang, acting as a crucial energetic intersection where the meridian's energy runs deep into the body.