Stomach Channel

Yinshi ST-33

Chinese: 阴市

Pinyin: Yīn Shì

Location

3 cun above the upper-lateral border of the patella, on a line between the lateral patellar border and the anterior superior iliac spine (ASIS). 

How to locate

Identify the anterior superior iliac spine (ASIS) and the upper lateral patellar border.

Draw an imaginary line between these two points and Yinshi ST-33 is located 3 cun above upper-lateral border of the patella on the line. 

Main actions

  1. Removes Obstructions from the Channel
  2. Expels Wind-Damp

Indications

Oedema Weak legs Cold legs Knee pain Stiff legs Weak knees Thigh pain Leg atrophy Leg numbness Shan disorder Abdominal pain Abdominal distension

Needling

Vertically 0.5–1.5 cun

Commentary for Yinshi ST-33

Similar to its neighboring points of Biguan ST-31 and Futu ST-32, Yinshi ST-33 is also indicated for Painful Obstruction Syndrome, Atrophy Syndrome or sequelae of Wind-stroke, particularly of the legs.

However, it is not a major point and is less used.