My dog has a new spot on her skin overnight. Should I worry?

Question

Hi, this spot appeared on our dog overnight and we’re worried about it. Pet's info: Dog | Mastador | Female | spayed | 1 year old | 65 lbs

Lauren Jones VMD · Accepted Answer

Portabella’s lesion is quite prominent. It’s possible that it could be an allergic reaction from contacting something, or a benign or malignant growth. Given her young age, a benign mass called a histiocytoma is quite possible. The good news is that these lesions resolve on their own in a few months without treatment. However, the only way to differentiate between different types of skin lesions is some diagnostic testing. There’s certainly no reason to panic or worry yourself, but I do think it would be best to have Portabella examined by your vet. Your vet may want to take some cells from this lesion for microscopic evaluation. I hope that everything goes well!

My dog has a new spot on her skin overnight. Should I worry?

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