Hematoma More Condition_symptoms How Long Does A Hematoma Take To Appear In A Dog's Ear?

How long does a hematoma take to appear in a dog's ear? - hematoma more condition_symptoms

I realized that my dog has a tumor in the ear. They are 2-3 cm in diameter. I did a little research and I think that is a contusion. Who knows how long he will appear (just released this size can) in a few hours? Moreover, it is a way to get rid of it other than surgery?