On the lateral side of the dorsum of the big toe,0.1 cun posterior to the corner of the base of the nail.
- ①Hernia, pain in the lower abdomen;
- ②bed-wetting, urine retention, five types of strangury, hematuria;
- ③irregular menstruation, metrorrhagia, flaccid constriction of penis, prolapse of the uterus;
- ④epilepsy, coma.
Shallow insertion or prick to bleed with a three-edged needle.