{
  "id": "BL56",
  "name": {
    "en": "Chengjin",
    "gloss": "Supporting the Sinew",
    "zh-Hant": "承筋",
    "zh-Hans": "承筋"
  },
  "channel": {
    "id": "BL",
    "order": 56,
    "of": 67
  },
  "location": {
    "text": "In the middle of the back of the calf, on the fullest part of the calf muscle."
  },
  "for": [
    "calf cramps",
    "tight low back and legs",
    "haemorrhoids"
  ],
  "press": {
    "text": "Moderate thumb pressure, about a minute each leg.",
    "seconds": 60,
    "sides": "both"
  },
  "cautions": [
    "Skip a calf that is suddenly swollen, hot or sore, and see a doctor."
  ],
  "source": "Zhenjiu Jiayi Jing, book 3",
  "url": "https://acupoints.com/en/points/bl56",
  "lastReviewed": "2026-08-24"
}