Does hitting a child's buttocks too much have an impact?

Patient's question:

Not up to it, the doctor kept giving him injections on the buttocks, I was a bit worried whether it might trigger something bad. Past treatment history and effectiveness: Didn't care what kind of assistance: Thought of the doctor's clarification

Doctor's answer:

I don't know what the baby's condition is and whether it needs regular intramuscular injections in the buttocks; if it's a routine, planned vaccine, it's fine, but if it's for treating colds, fever, etc., it's unnecessary. Long-term, repeated muscle injections will definitely have an impact on the buttock muscles, potentially causing local lumps, etc. Generally, it will not interfere with limb function, so there's no need to worry too much. For common illnesses like colds and fever, medication is sufficient, and there's no need for intramuscular injections for treatment.