Bulge after vaccine injection

[timirving]

I have a 6 month old lab/shepard/pit bull mix who gets pretty bad bulges after her vaccines. Should I be concerned? Has anyone had a dog who developed a lipoma after vaccines?

[kjd]

I'd ask the vet before I became concerned. kjd

[KOPcaroline]

Local reactions to vaccines are more common than you might think, in both dogs and cats. Only very rarely do they cause serious problems, usually its just a dermatological inflammation or sometimes a temporary vasculitis (inflammation of the underlying blood vessels). It should resolve itself within a couple weeks, if it persists, consult your vet. I've never heard of lipomas resulting from a vaccine, and as the above person said, you can always ask your vet for reassurance