Xiyan
Location
In the depression on both sides of the patellar ligament when the kneels flexed. The medial and lateral points are named "Neixiyan" and "Waixiyan" respectively.
Indications
Gonalgia, weakness of the lower extremities.
Method
Puncture perpendicularly 0.5-1.0 inch. Moxibustion is applicable.