Indications: Knee joint pain.

Acupoints: including golden bucket, golden rooster and Jinling.

Principle and application demonstration:

1. Punching and bloodletting at Sanjin point can treat knee pain with immediate effect.

2. These three acupoints all start from gold, so they are called Sanjin acupoints, which are related to the lung, pericardium and heart, and can strengthen the heart and cure the knee.