What did @surgicalknowledge11 actually say?
The creator walks through intramuscular injection technique, focusing on site selection in what appears to be the gluteal region. The key clinical instruction is to use the "outer quadrant" and specifically the "upper outer quadrant" of the buttock to avoid what they call the "Shiatic nurse or blood vessel" — an apparent phonetic reference to the sciatic nerve. The video blends Urdu/Hindi with English, making some specific claims difficult to verify word for word, but the anatomical intent is clear enough to evaluate.
The core message: when giving an IM injection in the gluteal area, aim for the upper outer quadrant to stay away from the sciatic nerve and nearby vasculature. That is the claim worth checking.
Does the science back this up?
Partially, yes, but this advice is outdated by about two decades of nursing and injection safety literature. The upper outer quadrant rule was the standard teaching for most of the 20th century, but it has real problems that the video does not mention.
The dorsogluteal site, which is what the upper outer quadrant approach typically targets, carries a documented risk of inadvertent sciatic nerve injury, even when the quadrant rule is followed correctly. A 2009 review by Nicoll and Hesby in the Journal of Continuing Education in Nursing found that the dorsogluteal site is associated with higher complication rates compared to the ventrogluteal site and called for a shift in clinical practice. The ventrogluteal site, located over the gluteus medius and minimus rather than the gluteus maximus, is now the preferred IM site in most updated clinical guidelines precisely because the sciatic nerve and superior gluteal vessels are not in the vicinity. The World Health Organization and multiple nursing bodies have updated their guidance accordingly.
What did they get wrong (or right)?
Credit first: the instinct to avoid the sciatic nerve is correct. Sciatic nerve injury from IM injection is a real, documented complication. A 1999 case series by Mishra and Stringer in the Developmental Medicine and Child Neurology journal documented nerve palsy cases tied to incorrectly placed gluteal injections, particularly in pediatric patients. Mentioning the sciatic nerve at all puts this creator ahead of videos that skip anatomical warnings entirely.
What they got wrong: recommending the upper outer quadrant as the primary go-to site without noting that contemporary evidence favors the ventrogluteal site. Teaching the quadrant rule alone gives learners false confidence. The sciatic nerve's course is variable between individuals, and the "safe zone" defined by the quadrant method is less reliable than it looks on a diagram. If someone is injecting peptides like BPC-157 or TB-500 subcutaneously or intramuscularly based on this guidance alone, they are working with incomplete information.
What should you actually know?
The ventrogluteal site is the current evidence-based first choice for gluteal IM injections in adults. You locate it by placing the heel of your hand on the greater trochanter, pointing your index finger toward the anterior superior iliac spine, and spreading your middle finger toward the iliac crest. The injection goes into the V formed between those two fingers. This area does not have major nerves or vessels running through it, which is why Greenway's 2004 review in the British Journal of Nursing recommended it as the default site.
For people self-administering peptide therapies, the practical reality is that subcutaneous injection is more commonly used and technically simpler than IM for many compounds. IM technique matters when it is genuinely indicated, but learning it from a short TikTok with partial audio clarity is not a substitute for hands-on training. Needle length, injection angle, aspiration debate, and post-injection monitoring are all real variables this video does not cover.
- Always confirm with a licensed provider which route of administration is appropriate for your specific compound and health situation.
- Site rotation matters for tissue health regardless of which IM or subcutaneous site you use.
- If you feel sharp radiating pain during an injection, stop immediately. That is a nerve warning sign.