Puppy's vaccine site bump is growing. Is it a tumor or reaction?

This could be a skin reaction to a sting or bite, or a cyst or a little abscess or in fact a small tumor or wart. I suggest you observe the spot weekly, and if it changes in size or color or if it starts to hurt or the skin around it turns red, then you should have it examined by your veterinarian. If it stays the same or gets smaller, then it is likely nothing you have to worry about and you can show it to your vet the during the next routine visit.

Poor Rocky. A lump at the vaccination site, as well as some soreness and tiredness, are normal after getting a vaccine. If Rocky will let you, you can try holding a warm compress (such as a washcloth soaked in warm water and then wrung out) against the sore area for a few minutes 1-2 times daily until he seems to be feeling better. Usually, most pups are back to normal within a few days :)

Hi there! I'm sorry to hear about Bruce's lump. Vaccinations can definitely leave behind a small bump at times. If this happens after I vaccinate a dog, I will have the client bring their pet in so I can examine the spot, make sure that it coincides with where I gave the vaccine for sure. If it is something new rather than a lump from the vaccine, it can be addressed accordingly. As long as it is just from the vaccine, then we monitor the spot over the course of a few weeks. If it is a localized inflammatory response to the vaccine, it usually will go away over time. If it persists, some clients will opt to have me remove the tiny lump and test it to make sure it just comes back as an inflammatory response and not something serious. I would definitely call your veterinarian and have Bruce get a quick examination to make sure all is well, and you will likely just monitor the lump going forward. I hope you find this answer helpful. Best of luck!

That is a very common occurrence after vaccination. The vaccine can cause a localized reaction and it should resolve on its own within a month. If it persists, seems larger, or bothers him that have your vet take a look at it.

Some vaccines, respectively the adjuvants contained in the vaccines, can cause a local tissue reaction such as swelling and pain. lepto is one of those vaccines where this is happening more often. Keep checking the bump for heat and pain and fluctuation and if you think it is getting inflamed or painful you should take Rosie back to the vet for a recheck as she may have an injection abscess which should be lanced and flushed. Usually "normal" vaccine tissue reactions disappear within a week.

Hello. If this is a "vaccine bump" it may subside on its own. You can have it removed, but it may not be absolutely necessary, especially if Simone does not seem to be bothered by it. It is unlikely that this will morph into something worrisome like cancer. Watch it for the next few months & then decide if removal is necessary. Thanks for using Petco Pet Education Center, formerly Petcoach.

Hello, thank you for using Petco Pet Education Center, formerly Petcoach! It could be any of those things: a localized vaccine reaction, a reaction to her microchip (if she has one), an insect sting.... no way for me to tell you which. Just call your vet to discuss when you can. Take some photos of the lump so that you can maybe send to them so they can decide if you need to bring her in or try some home treatment first.