Gluteus maximus injection is an injection in the gluteal muscle, which can be performed by patients lying on their side or standing. Patients who choose to lie on their side should keep the buttock receiving the injection facing upward, keeping the upper leg straight and the lower leg slightly bent to avoid muscle tension and not easily sticking the syringe in. In addition to lying on the side, standing injection is also an option. Patients can stand firmly holding a table or hospital bed, with the side to be injected facing outward, and patients should keep their bodies relaxed and still, so that it is not easy to insert the needle into the correct position. For younger patients, injections can be given in the lying down position, and parents should try to hold the child’s limbs down to avoid painful child movement during the injection, which can affect the injection. Regardless of the position chosen for injection, the patient should remain still, so that the muscles are in a relaxed state and pain should be tolerated to avoid accidents such as needle deviation when moving around.