Location & How to Find

Anatomical Location: At the junction of lines drawn along the medial border and base of the toenail.

How to Locate:

  1. Look at your big toe
  2. Find the inner corner of the toenail (toward your other foot)
  3. Locate where the nail meets the skin at this corner
  4. The point is right at this junction
Location illustration for At the junction of lines drawn along the medial border and base of the toenail.

Primary Functions

Digestive System

  • Strengthens spleen qi and digestive function
  • Treats chronic diarrhea and loose stools
  • Improves appetite and food absorption
  • Reduces abdominal bloating and distension

Circulatory System

  • Controls bleeding and hemorrhage
  • Treats menorrhagia and excessive menstrual bleeding
  • Strengthens blood holding function of spleen
  • Reduces bruising and bleeding tendency

Emotional & Mental

  • Calms excessive thinking and worry
  • Treats insomnia from mental overactivity
  • Reduces obsessive thoughts and rumination
  • Promotes mental calmness and focus

Nervous System

  • Treats epilepsy and convulsions
  • Reduces mental restlessness
  • Calms hyperactive nervous system

Select a point to learn about its location, primary functions, clinical applications, and protocols.

SP-1 Protocols

N/A

Important Precautions

  • Broken skin around nail
  • Severe nail infections
  • Recent nail injury