The correct method of stabbing the Huanjiu acupoint is to stab straight for 2 to 3 inches, but care should be taken to take the acupoint in the side-lying position, with the leg underneath straightened and the leg above flexed. Huanjiu is an acupoint of the Foot Shaoyang Gallbladder Meridian, which is located on the buttocks, at the junction of the outer 1/3 and inner 2/3 of the line connecting the most convex part of the greater trochanter of the femur and the sacral cleft. The point should be taken in a lateral position, with the lower leg straightened and the upper leg flexed, so as to be able to find the femur rotator cuff smoothly, and the needles are inserted in a straight way, and a 3-inch needle is usually chosen. The needle should be inserted straight into the point and a 3-inch needle is usually used. After the needle is inserted into the point, there should be a feeling of electric shock transmitted from the thigh to the sole of the foot. The main stimulus at this point is the sciatic nerve. This point can be used to treat back and leg pain, hemiplegia (inability to move one side of the body) and other disorders, and is often used in conjunction with the kidney, large intestine, and central committee points. Acupuncture should be performed by a medical professional.