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Red marks from injection areas

9 replies

Biosblbay · 24/10/2026 09:57

I have been jabbing mounjaro for 3 months and I have never had this before! Both marks shown are from my most two recent jabs, one was Tuesday evening, the other is still there from the Tuesday before!
I have health anxiety so this has really concerned me. What is this? Is it a concern? Am I doing it too low? Not sure if I would need to consult my GP. I have no idea!
u have stretch marks from having two children, one of which was only born last year so fairly recent, not sure if this is the issue.

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Red marks from injection areas
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Red marks from injection areas
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Red marks from injection areas
OP posts:
FourEyesGood · 24/10/2026 10:01

I had some slight bruising (which lasted for quite a long time; maybe 10 days?) from a couple of my jabs - I think my second and third ones - and then none since. Nothing bad happened; they faded eventually.

I think you’ll be absolutely fine, but if your MJ provider offers a ‘check-in’ service or has an online chat function, you could ask there just to set your mind at ease.

AubreysMonkey · 24/10/2026 10:05

I've seen people suggest using a slightly longer needle if you are having redness around the site of the jabs. You can buy them at the pharmacy.

madeinthe80z · 24/10/2026 10:07

Yeah don’t worry it’s completely normal. I get them too sometimes, I also found it was worse if I wiped my skin with the alcohol wipe instead of just the pen. The red marks never hurt or itch or anything. I am currently sporting a massive bruise from this weeks jab, about the size of two 50p coins, I must have hit a blood vessel or something!

morbidcuriosity · 24/10/2026 10:47

You just got unlucky twice in a row. . I sometimes get a mark, can last over a week. It's normal.

WeAllHaveWings · 24/10/2026 11:03

I had injection site reactions for a few weeks too. I eventually worked out it was when I changed provider and pen needle brand. I react to BD Viva needles (possibly the lubricant they use).

I changed to another brand of needle and no issues since.

Charlenedickens · 24/10/2026 11:17

It’s very very normal, it’s called an injection site reaction , anti histamine helps, mine were enormous and raised and so itchy with quite big bruises at times,

it then just tails off and stops, nothing to worry about,

BobbleBear · 24/10/2026 11:32

Yes, certain brands of needles can cause a reaction, which is entirely harmless, but annoying. What brand are you using?

I bought a box of 100 needles by CarePoint when I bought my first pen as mine don’t come with any needles. I’ve not had any skin reactions from these needles. Google “carepoint insulin needles 0.23 x 4mm”

AmberLime · 24/10/2026 11:36

Very normal. Nothing to worry about.

I find a few days of sudocream every morning and nights reduces the redness a bit quicker. But also, they go on their own without putting anything on.

Mysticmaiden · 24/10/2026 11:51

I would get a red itchy raised patch every week for 3 months until I let my pen warm up for an hour or so out of the fridge before injecting..never had it again 2 years later now.

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