CommunityInjection Technique

Sub Q Inj Question

13 replies12 peopleDec 17, 2025☆ Follow
Summary

Why do 31g 6mm needles require so much force for subq injections and what technique changes help

Users report that 31-gauge short needles often feel dull after piercing a vial stopper, making skin entry harder. Several found that a quick dart-like jab works better than slow pushing, and switching to pens avoids dulling the tip. Pinching skin tight, avoiding hesitation, and rotating sites also reduce resistance. Some note that stretch-marked areas or higher gauges feel noticeably tougher.

What this discussion establishesWhere people disagree

Whether 31g is too thin or still acceptable compared to 29-30g

Still open

Whether sitting versus standing position or using ice makes a consistent difference for everyone

Nothing here is advice.

13 replies · 12 people
BlueTimber78archiveopening postDec 17, 2025

New to this after twenty-five shots, the main problem is needing noticeable force to get the needle through the skin. Tried both straight in and angled approaches with no real change noticed. Using six millimeter thirty-one gauge syringes. Want to sort this before frequency increases. Maybe it just comes down to pushing faster or harder?

AmberCompass33archiveDec 17, 2025

Areas with stretch marks from when I weighed two hundred kilos are much tougher to push through. I rotate between stomach, butt, and thigh so spots get a break. With these thin short needles the butt and thigh should not be much trouble.

WarmQuill37archiveDec 17, 2025
↳ replying to @BlueTimber78 (opening post)

Consider trying an injection pen instead of regular syringes. Filling a syringe means going through the vial stopper first, which can dull the tip a little. The pen needle stays fresh for each use.

AmberMarble84archiveDec 17, 2025
↳ replying to @WarmQuill37

I agree it is harder with syringe needles once the dose has been drawn from the vial. Pen needles go in smooth and easy.

PatientPebble85archiveDec 17, 2025

These thin needles lose sharpness quickly. Moving to twenty-eight or thirty gauge helps a lot. Aim for the center of the vial stopper where it is thinnest. Pinch the skin firmly between thumb and finger so it is tight, which makes the needle go in easier.

WarmHarbour28archiveDec 18, 2025

There is a noticeable difference between thirty and thirty-one gauge. The smaller one is almost unfelt.

PatientMeadow16archiveDec 21, 2025

Twenty-nine gauge works fine for me. Pens are the easiest overall. With regular needles many people press while the tip rests on the skin. Holding it back a couple inches and giving a quick jab tends to be simpler and less painful. Finding what suits you takes some trial and error.

WarmMeadow92archiveDec 21, 2025
↳ replying to @BlueTimber78 (opening post)

Same needle size here and the same resistance shows up. Part of it seems to be hesitation. When I overthink and let the tip rest on the skin first the push feels hardest. Not thinking and just doing the jab quickly makes it simple.

SharpCinder28archiveDec 21, 2025
↳ replying to @WarmMeadow92

Early on I hesitated less and the first ones were quick jabs. A single cough serves as distraction for thigh shots. Learned that from a nurse video. Have not tried it yet for abdominal subq but would probably do it seated since that is how the thigh ones were done. The first subq attempts were also done sitting.

ClearBeacon24archiveDec 21, 2025

Faster jabs go straight in without issue.

CopperAlder51archiveDec 21, 2025

The cough trick sounds useful. Have not done IM yet but might for other compounds. For subq it helps to picture the contact point as already half an inch under the skin instead of on the surface. That lets it go in with almost no extra effort.

WarmMeadow92archiveDec 21, 2025
↳ replying to @SharpCinder28

Quick jabs do help. When giving a weekly shot to a family member who dislikes doing their own, an ice pack on the site for a few minutes numbs it so nothing is felt. No hesitation then and it goes right in. Not sure why the same approach is not used on myself and instead there is just sitting and thinking about it.

ClearBeacon24archiveDec 21, 2025

Helping a few friends with theirs, the quick jabs cause no pain and go straight in.

CopperFenwick10archiveDec 21, 2025

Do not hesitate, just throw it in like a dart, quick and smooth.

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Sub Q Inj Question · ZyraTrack Community