Common IM Injection Sites Deltoid (Upper Arm) Location: About 23 finger widths below the acromion process (shoulder bone). Best for: Vaccines and small volume injections (1 mL). Notes: Easy to access but limited How to Give Yourself Intramuscular (IM) Injections Patients & Families UW Health VENTROGLUTEAL IM INJECTION SITE The **safest intramuscular injection site**, located away from the sciatic nerve. Preferred for adults and children (>7 months) due to thick muscle mass, minimal fat layer, and B12 vitamin Store How to Give an Intramuscular Injection of Vitamin B12 IM injection sites (intramuscular injections) made easy for nursing school students, nurses, and more! This includes a quick summary of the IM injection sites, along with some details such as landmarks and