Sign · 夜间口干
Dry mouth at night
A mouth that dries out overnight and wants water on waking.
This page is a reference entry, not an assessment. It says which patterns the sign belongs to in the table this site is built on, at what weight, and where else on the site it appears. Having a sign is not having a pattern — most people have several of these at once, and the self-check is where they are weighed against each other.
What weight it carries
Every sign in the table is filed against one or more patterns at one of three weights. The weight is about diagnostic usefulness, not severity: a defining sign is one the pattern cannot be argued without, which is a different thing from a sign that is dangerous.
| Pattern | 中文 | Weight |
|---|---|---|
| Kidney yin deficiency | 肾阴虚证 | Common |
| Damp-heat | 湿热证 | Common |
| Liver yin deficiency | 肝阴虚证 | Common |
| Liver qi stagnation | 肝郁气滞证 | Supporting |
| Liver yang rising | 肝阳上亢证 | Supporting |
Common for 3 patterns
Usually present, and its absence counts against the pattern. ×2.
Supporting for 2 patterns
Compatible with the pattern but not required. ×1.
Where it appears on the site
The condition pages that list this sign as one of the things to look for:
- Dry eyes 眼干
- Night sweats 盗汗
- Hot flashes 潮热
- Menopausal symptoms 更年期症状
- Mouth ulcers 口腔溃疡
Other sensation signs
The table groups signs by the part of the body or the kind of observation they come from. These are the other entries in the same group.
- Cold hands and feet 手足不温
- Dull abdominal ache relieved by pressure 腹痛喜按
- Dragging or bearing-down feeling 下坠感
- Dizziness or blurred vision on standing 起立时头晕目眩
- Palpitations 心悸
- Dizziness 头晕
- Dry eyes or blurred vision 目干涩视物模糊
- Numbness or tingling in the limbs 肢体麻木
Part of the sign index — 118 entries weighted across twelve patterns. How the weights are used is set out in the methodology.