# KD21 Youmen (Dark Gate) – Kidney Meridian

幽門 · yōu mén

Location: 6 thumb widths above the umbilicus 0.5 thumb widths lateral to the CV14.

Cautions: Avoid needling over the gravid uterus after the first trimester; where used in pregnancy, needle shallowly and only on a clear obstetric indication.

Canonical page: https://acuiq.com/points/kd21

## Indications

An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

Breast Abscess, Breast Abscess, Agitation Below Heart, Agitation Below Heart, Loss of Appetite, Loss of Appetite, Benefit Breasts, Benefit Breasts, Benefit Chest, Benefit Chest, Benefit Descend Rebellion, Benefit Digestion, Benefit Digestion, Benefit Regulate Qi Liver, Benefit Regulate Stomach, Benefit Spleen, Benefit Spleen, Cough, Coughing Blood, Coughing Blood, Counterflow Qi, Counterflow Qi, Descend Rebellion, Diarrhea, Costal Lateral Bloating, Costal Lateral Bloating, Focal Below Heart Bloating, Focal Below Heart Bloating, Dysentery, Defecation Urgent Problems, Defecation Urgent Problems, Fullness, Below Heart Fullness, Below Heart Fullness, Lactation Loss, Lactation Loss, Poor Memory, Poor Memory, Nausea, Pain, Abdominal Pain, Abdominal Pain, Lower Abdominal Pain, Lower Abdominal Pain, Back Pain, Back Pain, Chest Pain, Chest Pain, Rib Pain, Rib Pain, Heart Female Pain, Heart Female Pain, Pregnancy Morning Sickness, Pregnancy Morning Sickness, Pregnancy Nausea, Pregnancy Nausea, Pregnancy Vomiting, Pregnancy Vomiting, Eye Canthus Medial Redness, Eye Canthus Medial Redness, Regulate Qi Liver, Regulate Stomach, Retching, Saliva Excessive, Excessive Salivation, Blood in Stool, Blood in Stool, Vomiting, Vomiting Foam, Vomiting Foam, Vomiting Saliva Watery, Vomiting Saliva Watery

## Most often selected alongside KD21

Sourced protocols in the index pairing each point with this one. Corpus frequency, not a combination to use.

- BL14 (Absolute Yin Shu Point) – 2 protocols
- BL16 (Governing Vessel Shu Point) – 2 protocols
- BL21 (Stomach Shu Point) – 2 protocols
- GV20 (100 Convergences) – 2 protocols
- HT03 (Lesser Sea) – 2 protocols
- HT07 (Spirit Gate) – 2 protocols
- KD18 (Stone Gate) – 2 protocols
- LI11 (Pond At The Bend) – 2 protocols

## Protocols using KD21

| Symptoms | Points | Course | Source | Kind | Caveat |
|---|---|---|---|---|---|
| Anxiety, Back Pain, Miscarriage Threatened, Bleeding Vaginal, Cramping Abdominal | LU07, LI11, ST36, ST37, SP01, SP04, HT07, BL20, BL23, BL57, BL62, KD06, KD09, KD21, KD27, PC06, TB04, TB05, TB06, GB30, GB34, GB41, LV02, LV03, CV04, GV04, GV20 | 28 days | doi:10.1186/s12884-016-1092-8 | trial | Point selection reported in a published study. |
| Nausea Pregnancy, Vomiting Pregnancy | KD21 | – | doi:10.1590/1980-220X-REEUSP-2021-0515en | trial | Point selection reported in a published study. |
| Nausea Pregnancy, Vomiting Pregnancy | KD21, PC06 | 14 days | doi:10.2147/IJWH.S512247 | trial | Point selection reported in a published study. |
| Forgetfulness, Memory Impairment, Mild Cognitive Impairment | LU03, LU07, HT03, HT07, BL15, BL43, KD01, KD21, GV11, GV20 | – | doi:10.19917/j.cnki.1005-0779.022173 | trial | Point selection reported in a published study. |
| Liver Qi Stagnation, Liver Qi Stagnation | LI17, LI18, ST09, ST15, ST16, ST18, ST25, ST26, ST27, SP13, SP18, HT03, HT04, SI11, BL14, BL16, BL18, BL31, KD21, XB02T9 | 7 days | Yang Yong-Xuan, clinical point-selection notes | text | Point selection recorded in a clinical text or case report. |
| Stomach Food Stagnation, Stomach Food Stagnation | ST30, ST34, ST37, BL21, BL22, KD18, KD21 | 7 days | Yang Yong-Xuan, clinical point-selection notes | text | Point selection recorded in a clinical text or case report. |
| Qi Rebellious Stomach, Qi Rebellious Stomach | LI11, ST09, ST10, ST11, ST12, ST19, ST20, ST24, ST34, ST44, SP14, BL14, BL16, BL17, BL19, BL21, KD18, KD19, KD21, KD23, KD24, KD25, KD26 | 7 days | Yang Yong-Xuan, clinical point-selection notes | text | Point selection recorded in a clinical text or case report. |

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AcuiQ-authored prose (symptom and meridian descriptions, the wiki, the auricular crosswalk) is licensed CC-BY-4.0: https://creativecommons.org/licenses/by/4.0/. The assembled protocol compilation is not: build on it with attribution, but do not redistribute it whole as a dataset – https://acuiq.com/terms. The underlying findings are the cited sources' claims – each entry carries its citation; verify against the source before relying on it. Not medical advice: https://acuiq.com/terms