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POINT: SJ-20 (SAN JIAO-20)  

English: Minute Angle
Also Known As: Angle of Regeneration
  • Directly above the ear apex within the hairline.
  • Above the tip of the ear at the natural hairline.
  • On the side of the head, directly level with the apes of the ear when the ear is folded forwards.
    Note: Fold the ear so that the posterior part of the upper helix directly covers the anterior part of the upper helix. Take care not to push the whole ear forwards.
  • Puncture subcutaneously 0.3 to 0.5 cun.
  • Moxibustion is applicable.
  • Slanted insertion 0.3 to 0.5 cun.
  • Transverse insertion 0.5 to 1 cun.
    Note: this point in common with all points within the hairline may be needled in any direction, depending on symptomology.
  • Meeting point of the San Jiao, Small Intestine and Gall Bladder channels
  • Benefits the ears
  • Benefits the teeth, gums and lips
  • Clears Heat
  • Tinnitus
  • Redness, pain and swelling of the gums
  • Toothache
  • Parotitis
  • Tooth decay
  • Pain and swelling of the gums with inability to chew
  • Stiffness of the lips
  • Superficial visual obstruction
  • Pannus
  • Red and swollen earlobe
  • Deafness
  • Discharge of pus from the ear
  • Redness and swelling of the back of the ear
  • Redness and swelling of the auricle
  • Dryness of the lips
  • Stiffness of the nape of the neck with inability to turn the head



Pain of the gums

Inability to chew


  • This point is rarely used clinically.