Back pain caused by a fall on the waist and crotch can be treated with acupuncture at the Commission Center point, the Wa-Yang-Guan point, and the Wa-Yu point. 1. The point belongs to the foot solar bladder meridian, and is positioned at the midpoint of the popliteal transverse stripe, when the biceps tendon and semitendinosus tendon of the femur are in the middle. It is used for treating low back pain, lower limb paralysis (weakness, numbness and pain in the lower limbs), abdominal pain, dysuria (unsmooth urination), and dengteng (acute infectious disease in which the skin is red as if coated with paint). 2. Lumbar Yang Guan acupoint belongs to the Directing Vessel and is positioned on the posterior midline, in the depression below the spinous process of the 4th lumbar vertebra. The main treatment for lumbosacral pain, lower limb impotence paralysis, menstrual disorders, spermatorrhea and impotence and other diseases. 3. Lumbar acupoint belongs to the Directing Vessel and is positioned on the posterior midline, directly opposite the sacral cleft. It is used for treating lumbar spine pain, lower limb impotence, menstrual disorders, hemorrhoids, constipation, epilepsy and other diseases. If necessary, it should be operated by a specialized physician in a hospital.