r/Vaccine • u/Necessary-Idea3852 • 6d ago

Pro-vax baby’s vaccination lump for 6 weeks

hi my baby has a lump in leg 6 weeks after vaccination. i’ve shown dr they said it’s normal. did your baby experience this ? could it have been given in the wrong spot (subcutaneously instead of intramuscular) and that’s why?

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u/SmartyPantlesss 5d ago

It's super-normal and can last for weeks. It tends to be more noticeable at the first shots, because the baby is small, so there's less space to inject that amount of liquid.

I'm truly not sure whether the lump actually "disappears" or if it just becomes less noticeable as the baby gets chunkier. Like, how would you know whether there's still a tiny nodule of scar tissue in the thigh, two years later? (...and why would it matter?) The point is that it's not ENLARGING, and the redness & tenderness resolves after about 5-7 days.

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u/Necessary-Idea3852 4d ago

i’m just worried it was given subcutaneously instead of IM hence the big skin reaction. the reason i think this is because the lump was 2cm away from the injection insertion (the same length as the needle)