There are many causes of low back pain, the most common cause is lumbar back muscle strain, resulting in lumbar back muscle spasm, which affects the lumbar spine forward flexion activities, over time will appear lumbar spine physiological curvature straightening. The most common prevention methods: local heat compress; regular moderate exercise, including jogging, climbing, aerobics; prevention of sedentary, every 40 minutes – 1 hour after stretching or activity for a few minutes, are effective. Early prevention and care of low back pain is completely curable, but regular self-care should be achieved.