The safest place to inject in your glute is the ventrogluteal site, located on the upper outer side of your hip rather than the middle of your buttock. This spot has the thickest muscle, the least fat covering it, and sits far from the sciatic nerve and major blood vessels. The other option, the dorsogluteal site (the upper outer quadrant of the buttock), is still used but is no longer the preferred choice in clinical guidelines because of its proximity to the sciatic nerve.
The Ventrogluteal Site: Preferred Location
The ventrogluteal site sits over the gluteus medius muscle on the side of your hip. It has more muscle tissue and less subcutaneous fat than the dorsogluteal site, which means the medication is more likely to reach the muscle rather than getting deposited in fat. To find it, use the hand opposite the hip you’re injecting (right hand for left hip, left hand for right hip). Place the heel of your palm on the bony bump at the top of your outer thigh (the greater trochanter). Point your index finger toward your belly button along the front of your hip bone, then spread your middle finger back toward the top of the hip crest, forming a V shape. The injection goes into the center of that V.
You can be lying on your side, on your stomach, or standing when using this site. If you’re injecting yourself, lying on your side with the target hip facing up and your top leg slightly bent tends to relax the muscle and make the process easier. This site is also considered safer for older adults because there’s a lower risk of hitting bone or injecting into fat instead of muscle.
The Dorsogluteal Site: Upper Outer Quadrant
The dorsogluteal site is what most people picture when they think of a “glute injection.” It sits in the upper outer quadrant of the buttock, roughly 5 to 8 centimeters below the top of the hip bone (iliac crest). One way to confirm your landmark is to imagine a line drawn between the bony point at the back of your pelvis and the greater trochanter on your outer thigh. The injection should go above and to the outside of that line.
This site works, but it carries more risk if you miss the mark. The sciatic nerve runs through the buttock, and injections placed too far toward the center or too low are the primary cause of injection-related sciatic nerve injuries. A 24-year study found that injection was the single most common cause of sciatic nerve damage at the buttock level, accounting for more than half of cases. The closer the needle lands to the nerve, the worse the potential damage, which can cause foot drop, numbness, or lasting pain down the leg. For this reason, if you have the choice, the ventrogluteal site is the better option.
Needle Size and Depth
For adult gluteal injections, use a needle between 22 and 25 gauge. Thinner gauges (higher numbers) hurt less going in but push medication through more slowly. A 23-gauge needle is a common middle ground. Needle length depends on your body size:
- Under 130 lbs (60 kg): A 1-inch needle is typically sufficient. Some sources suggest a 5/8-inch needle can work if you stretch the skin flat and avoid bunching the tissue.
- 130 to 200 lbs: A 1-inch needle works for most people, though 1.5 inches may be more reliable.
- Over 200 lbs: A 1.5-inch needle is recommended to ensure you pass through the fat layer and reach muscle.
The goal is for the entire medication to be deposited into muscle, not fat. If your needle is too short, the drug sits in subcutaneous tissue, which slows absorption and can cause a painful lump.
How to Do the Injection
Clean the site with an alcohol swab and let it air dry. Use the Z-track technique: before inserting the needle, pull the skin to one side with your non-dominant hand, then insert the needle at a 90-degree angle with a quick, dart-like motion. Keeping the skin displaced this way creates an offset path through the tissue layers, so when you release the skin afterward, the track seals itself and medication doesn’t leak back out.
Insert the needle fully. Inject slowly, aiming for about 10 seconds per milliliter. Slow injection gives the muscle fibers time to stretch and hold the medication, which reduces leakage and post-injection soreness. Once the syringe is empty, wait a few seconds, withdraw the needle smoothly, then release the skin you were holding to the side.
Aspiration (pulling back on the plunger to check for blood before injecting) is no longer recommended by the CDC for standard intramuscular injections. No large blood vessels sit at the recommended injection sites, and the aspiration step can increase pain without adding safety. That said, some providers or medication instructions still call for it, so follow whatever guidance came with your specific prescription.
Rotating Your Injection Site
If you inject regularly, such as weekly testosterone or B12 shots, rotate between your left and right glute and consider alternating between the ventrogluteal site and other intramuscular sites like the outer thigh (vastus lateralis). Repeated injections in the same spot can cause scar tissue to build up in the muscle, which makes future injections more painful and can interfere with how well the medication absorbs. Keeping a simple log of which site you used last helps you stay on rotation without having to remember.
Signs Something Went Wrong
Some soreness at the injection site for a day or two is normal, especially with oil-based medications. A small, firm lump that fades over several days usually just means some medication pooled in the tissue. What isn’t normal: increasing redness, warmth, or swelling at the site after 48 hours (possible infection), shooting pain or tingling down your leg during or after injection (possible nerve contact), or a hard lump that doesn’t shrink after a week or two.
If you felt a sharp, electric-type pain radiating down your leg during the injection, that suggests the needle was near the sciatic nerve. The peroneal branch of the nerve is the most vulnerable portion, and damage there can cause weakness in lifting the foot or numbness along the outer lower leg. This is rare when using the ventrogluteal site but is one of the key reasons that location is preferred over the center of the buttock.