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Small bruise after pinning

13 replies8 peopleNov 1, 2026☆ Follow
Summary

why do small bruises sometimes appear after an injection and should I be concerned

Participants report that minor bruising after pinning is fairly common, especially early on, and is typically caused by nicking a tiny blood vessel under the skin. It does not indicate poor technique, does not impact how the medication is absorbed, and fades on its own without any special treatment. The single instance in the thread involved a tiny amount of blood at the site that stopped quickly with pressure.

What this discussion establishes

Nothing here is advice.

13 replies · 8 people
WarmBramble71archiveopening postNov 1

Hello everyone. Only been injecting for a couple weeks. After my latest Tirz shot in the stomach a small bruise showed up. Probably nothing serious I hope, picture attached. Wondering what might have caused it or if I did anything wrong. All my other shots have been fine so far. Thanks.

BrightSparrow36archiveNov 1

Nothing to worry about, it just happens sometimes. Not common but also not unusual. When I began back in January it occurred more often than it does now after nine months, even though I inject four to six times daily now. Maybe the ghk/kpv has made me less prone to bruising than before, though I could be imagining that part.

WarmBramble71archiveNov 1

Appreciate the reassurance. I don't recall doing anything different from previous days. Could it be that the needle hit a small vein? I'm the type who needs to understand the reason behind things. Thanks a lot.

WarmMeadow92archiveNov 1

Like others mentioned, nothing to be concerned about. It mostly happened to me when I first started. Your picture doesn't show stretch marks, but I try to steer clear of those areas anyway and rotate sites. Doesn't seem related to technique and it doesn't change how the medication gets absorbed. I had a pretty bad one during my second week.

WarmMeadow92archiveNov 1
↳ replying to @WarmBramble71

You likely nicked a small blood vessel and it bled a bit under the skin. Did you see any blood on the surface after the shot? Are you taking any blood thinners?

WarmBramble71archiveNov 1
↳ replying to @WarmMeadow92

Yes, that was the only time a tiny bit of blood came out and I had to hold the alcohol pad on it for about a minute until it stopped. Not on blood thinners or anything else. So that explains it, must have hit a tiny vessel. Thanks to both of you. I figured it wasn't anything serious but wanted to check anyway, and searching the forum for bruise didn't turn up anything. This place has really helpful people.

NorthFenwick56archiveNov 1
↳ replying to @WarmBramble71 (opening post)

This happens to me quite a bit, sometimes even bigger bruises, especially on my quads, though I'm injecting nine to twelve times a day. They fade away on their own and aren't anything to stress over. Very minor, just relax and don't worry.

IronLantern24archiveNov 2

You hit a blood vessel. Happens to me occasionally too. I don't see any reason to be concerned about it.

WarmBramble71archiveNov 2

Why that many times each day? Curious if you don't mind sharing. Thanks to everyone!

CopperSignal27archiveNov 2

The speed at which the shot goes in seems to matter. I'm on clopidogrel so I already bruise easier, yet going slower cut down how often it happened. Harmless but having a bunch of marks across the stomach doesn't look good.

CopperThistle40archiveNov 2

It shows up for me if the spot is a little too low on the belly or love handles. An inch or two higher and I avoid them. Probably just small vessels getting nicked. Nothing to worry about.

WarmBramble71archiveNov 2

Thank you all! I'll try slowing down a little and check whether it helps. Seems like something normal and harmless anyway so that covers it. Thanks again.

PlainAlder11archive6d

It happened to me once.

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