All images and text© Copyright of Jaffa’s Health Centre for Cats. Sed vulputate
This is a very contentious issue.
The official line is to inject vaccines into the lower limbs so that they can be amputated if a nasty cancer develops.
Compared with vaccinating cats over the shoulder, limb injections tend to be more painful, and it is much easier for the cat to move and stab itself deeper with the needle.
Vaccination cancers are very rare. Over-vaccination is very common. My answer is to minimise the risk of reactions in the first place by only giving vaccines that are assessed as being beneficial to your cat.
By reducing the vaccine components we give by 1/3rd, we should reduce the risk 3 fold - so from approxamately one in 70,000 to one in 200,000. Doesn’t that make more sense than upsetting your cat every time whilst anticipating chopping its leg off?