One side of the buttocks can be injected at most twice at a time, and the specifics should be judged in combination with the drug and the absorption of the drug by the buttock muscles. Hip injection is mainly to inject the drug into the blood vessels, so that the blood vessels slowly absorb the drug composition, hip fat is more meat is also thicker, it is not easy to puncture the deep blood vessels when injecting, so generally choose to carry out hip injection. If the patient’s physical condition is better, the buttock absorbs the drug faster, then the number of times you can inject is more, if the patient’s physical condition is poorer, the absorption of the drug is slower, the number of times you can inject in the buttock is less, generally one side of the buttock can be hit at most two times, to avoid the impact of the drug on the body. When the drug needs to be injected into the buttocks, you can let the doctor observe the absorption of the drug and choose the right time for multiple injections to avoid adverse effects on the health of the organism.