Yes, I agree! It's better to take your rabbit to see the vet so you can be sure and also in any case it's
always best if these matters are cared for and observed right from the start even if it doesn't need to
be anything serious after all. Also, even if I wish this wouldn't be the case, in the first stages the cancer
growth doesn't need to be necessarily painful for the rabbit or not at all times at least. Anyway, try to
stay positive and I hope everything will go well for you and your bunny!