ST38 Tiaokou ("Narrow Opening")
On the anterior aspect of the lower leg, 8 cun below ST 35, one finger-breadth (middle finger) from the anterior crest of the tibia.
ST40 Fenglong ("Abundant Bulge")
On the anterior aspect of the lower leg, 8 cun superior to the external malleolus, lateral to ST 38, two finger-breadth (middle finger) from the anterior crest of the tibia.
![](https://i.ytimg.com/vi/QxUZWXJk8TA/maxresdefault.jpg)