{
  "id": "TH9",
  "name": {
    "en": "Sidu",
    "gloss": "Four Rivers",
    "zh-Hant": "四瀆",
    "zh-Hans": "四渎"
  },
  "channel": {
    "id": "TH",
    "order": 9,
    "of": 23
  },
  "location": {
    "text": "On the back of the forearm, about seven finger-widths below the elbow tip, between the two bones."
  },
  "for": [
    "toothache",
    "one-sided headache",
    "aching",
    "numb arm"
  ],
  "press": {
    "text": "Gentle fingertip pressure, about a minute each arm.",
    "seconds": 60,
    "sides": "both"
  },
  "cautions": [],
  "source": "Zhenjiu Jiayi Jing, book 3",
  "url": "https://acupoints.com/en/points/th9",
  "lastReviewed": "2026-08-24"
}