Why does my cat have a bump where he got vaccinated a week ago?

Question

My cat still had a bump on his body,where he get vaccinated (he get vaccinated a week before). Pet's info: Cat | Punjabi | Male | unneutered | 320 lbs

Daniel Fonza, DVM · Accepted Answer

Normally, there will be a small bump where a vaccination is given and this can persist for several weeks to months. If it persists for longer than 3 months and / or continues to grow in size, I would recommend having a veterinarian examine Simba so that the most appropriate diagnostic and treatment recommendation can be made. Sometimes, vaccines can cause cancerous tumors to grow in the area where the vaccine was administered. This is less common now, but still a risk. I hope this helps! Please let me know if you have any further questions / concerns and I would be more than happy to help you further.

Why does my cat have a bump where he got vaccinated a week ago?

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