Sign · 经前情绪低落
Mood drop before the period
Irritability or flatness in the days before bleeding begins.
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 |
|---|---|---|
| Liver qi stagnation | 肝郁气滞证 | Common |
| Blood deficiency | 血虚证 | Supporting |
Common for one pattern
Usually present, and its absence counts against the pattern. ×2.
Where it appears on the site
The condition pages that list this sign as one of the things to look for:
- Irritability 易怒
- Premenstrual symptoms 经前期症状
Other menstrual 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.
- Scanty or missed periods 经量少或闭经
- Heavy or prolonged periods 经量多或经期长
- Breast distension before the period 经前乳房胀痛
- Irregular menstruation 月经先后无定期
- Cramping pain with periods 痛经
Part of the sign index — 118 entries weighted across twelve patterns. How the weights are used is set out in the methodology.