Lumbar muscle strain, also known as "lumbar myofascitis" and "functional low back pain", is usually caused by chronic fibrosis, calcification and sclerosis of lumbar muscles, fascia and ligaments due to accumulated strain, trauma and imbalance of lumbar spine, which leads to fatigue or pain of lumbar muscles. This disease is mostly related to kidney deficiency caused by cold, dampness and strain, which is caused by damaged meridians, poor circulation of qi and blood, and long-term illness and fatigue.

The reference points are as follows:

1. Moxibustion Shenshu point-tonifying kidney and strengthening yang, strengthening waist and benefiting water;

2. Moxibustion of Weizhong point-Tonghe Jing to relieve pain;

3. Moxibustion of Ashi point-relieving local pain and discomfort;

4. Moxibustion Jiaji point-regulating the function of viscera.