Should I worry about a lump on my pot belly pig's belly after vaccine?

I wouldn't worry about the lump just yet, but I would have it checked out by the vet on Monday. This lump could be a cyst, an abscess, a lipoma, or a benign tumor. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of it's cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the vet diagnoses the cause of the lump, they can discuss treatment with you.

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.

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.

It is not uncommon to have a small lump at the injection site from a localized reaction to the vaccine. It is a little concerning that the area has gone bald am I am worried it could be infected. You could monitor the area and see if it changes but it might be best to have your vet take a look at it to see if treatment is needed. She may need an antibiotic to treat.

Cats typically do not receive vaccines on their belly, they are given over the shoulders on their back; therefore, I do not think this mass you felt is due to her vaccines. It could be that Lucy has a benign tumor, cyst, abscess, or a malignant tumor (unlikely in a young cat) causing the lump, and I would have her seen by a vet for it. The vet can examine and diagnose it, and let you know if any treatment is needed.

This very localized lump could be due to a trauma and inflammation/exudation of fluid under the skin in between muscles. Unfortunately it is diffiuclt to be more specific than that without having a feel during physical examination. I would recommend an immediate check up to confirm this clinical suspicion and treat accordingly. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

The most likely cause is a suture reaction, similar to how the body tries to get rid of a sticker in your finger. However, an infection or a hernia are also possible. I would encourage you to have her evaluated by a veterinarian soon. Best of luck and thank you for using Pet Coach.