### Chinese: 生理期前由于子宫充血和前列腺素释放过多，容易拉肚子。
### English: Pre-physiological period due to uterine blood filling and excessive release of prostate, it is easy to <v>pull the stomach</v>.
### Errors: There is a major accuracy/mistranslation error at "pull the stomach" within <v></v>.

### Improved English: It is easy to have diarrhea before the period due to uterine congestion and excessive prostaglandin release.
