My dog has new black mole-like scars. Are they serious or just scars?

Question

Nani has two black mole/scars on her body, one under her arm which is about an inch wide and another on her groin. The first appeared from scratching too hard and was red, but then over a months time, it became this mole-like scar. The other mole is about 1 cm thick, and appeared about two weeks after the first one. Pet's info: Dog | Mixed Breed | Female | spayed | 8 years and 4 months old | 18.5 lbs

Daniel Fonza, DVM · Accepted Answer

Hi there and thank you for your post! Judging from the pictures and your description, these skin lesions are likely benign but it would be difficult to rule out if they are cancerous or not based on pictures and a description unfortunately. If the skin was damaged sometimes Scar Tissue can come back as a discolored portion of the skin. So what you may be seeing is scar tissue that is hyperpigmentation. As with any Mass, I typically recommend further testing to help determine what the mask could be. A simple test called a fine needle aspirate can be performed. This test is when the veterinarian inserts a small needle into the mass to obtain cells. These cells are then assessed under a microscope to help better determine what the mass could be. So if you would like to know more what these masses could be, I would recommend having your veterinarian examine them and have a fine needle aspirate done. I hope this helps guide you in the right direction. Please feel free to contact me if you have any other questions or concerns and I would be more than happy to help you further.

My dog has new black mole-like scars. Are they serious or just scars?

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