The lumbar acupoint is located in the sacral region, directly opposite the sacral cleft, on the posterior midline. The lumbar yu point, also known as lumbar household, medullary hollow, dorsal dissolution, medullary mansion, lumbar hollow, lumbar column, belongs to the ducal chakra and is located in the sacral region, that is, the human lumbar median line directly opposite to the sacral fissure, and it has the efficacy of regulating menstruation and clearing away heat and dispersing cold and removing dampness. It can be used to treat various causes of lumbar and spinal pain, prolapse of anus, constipation, blood in the stool, urinary redness, menstrual irregularities, numbness of the feet, warm malaria and sweating, impotence paralysis of the lower limbs (lower limb weakness, numbness and pain); lumbosacral neuralgia, allergic colitis, hemorrhoids, gonorrhea, and so on. The lumbar point can be acupressure, acupuncture or moxibustion, the patient needs to keep supine or lateral position, press to take the tailbone above the right and left sacral angle, and the lower edge of the lower edge of the two sacral angle of the posterior median line to take the point, and upward diagonal stabbing 0.5-1 inches to carry on the acupuncture; you can also use moxibustion column moxibustion therapy for 5 to 15 minutes time. Acupuncture or moxibustion of acupuncture points should be performed by a professional physician, do not operate on your own. If you feel unwell, please seek medical advice.