Knee joint soreness, crane's knee wind, leg pain, and inflammation of the surrounding soft tissues.
On the medial side of the depression on the patellar ligament. (This acupoint is a pair, one on each side)
Step 1: Sit upright with knees bent. Step 2: On the medial and lateral sides of the knee, you can feel a depression, which is the acupoint in question. The one on the medial side is called the medial knee eye, and the one on the lateral side is called the lateral knee eye.