{
  "id": "BL40",
  "name": {
    "en": "Weizhong",
    "gloss": "Bend Middle",
    "zh-Hant": "委中",
    "zh-Hans": "委中"
  },
  "channel": {
    "id": "BL",
    "order": 40,
    "of": 67
  },
  "location": {
    "text": "膝后横纹正中，两条筋腱之间。"
  },
  "for": [
    "腰背痛",
    "下肢无力"
  ],
  "press": {
    "text": "屈膝，以指腹轻按，每条腿约一分钟。",
    "seconds": 60,
    "sides": "both"
  },
  "cautions": [
    "膝后静脉曲张、肿胀或触痛时不按。"
  ],
  "source": "《灵枢·本输》",
  "url": "https://acupoints.com/zh-cn/points/bl40",
  "lastReviewed": "2026-08-24"
}