Gluteus maximus injections are most often used. There are two methods of positioning gluteus maximus injections: the first, the cross method. It is to draw a horizontal line from the apex of the gluteal cleft to the left or right, and then make a vertical line through the highest point of the iliac crest to cross the horizontal line, dividing one side of the gluteus into four zones. The upper outer quarter is the best site for gluteal muscle injection, but care should be taken to avoid the line from the posterior superior iliac spine to the greater trochanter of the femur. The second one, the connecting line method. It is to draw a line from the anterior superior iliac spine to the sacrococcygeal area and divide this line into three equal parts, the outer upper 1/3 of which is the injection area. When injecting the gluteus maximus, care must be taken to avoid the sciatic nerve to avoid injury to the sciatic nerve.