Hi there,
My kitten received his first set of vaccines almost 4 weeks ago in between shoulder blades. He has a large pea lump still from this. Vet said not concerning at present and should go down last week when he had his second vaccine but had it in his leg this time. Has anyone had a post vaccine lump for 4+ weeks and it went? Worried about post vaccine sarcoma but vet said highly unlikely in such a young kitten and those lumps normally come up months after vaccine not straight after? Thanks so much!