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Dog's head: black patch turned scabby bump. What could it be?

Updated on September 23rd, 2025

Pet's info: Dog | Jack Russell Terrier | Female | unspayed | 15 years and 3 months old | 15 lbs

Any idea what this can b on my dogs head?I took her 2a vet & he really didnt know.It started out looking like a black patch of skin(as if she was going bald&she had a birth mark)around the front&abv her ear,down to abt jowl. Theres no texture 2 it- it looked smooth like skin.Then she developed wha looked like a bump,that was a lil squishy (like it was a lil swollen w/fluid, then seemed 2 open up aft abt a week & looks crusty & scabby. Took her to a vet who didnt know.

1 Answer

Most Helpful Answer

Ana M, DVM

Answered By Ana M, DVM

Veterinarian

Published on April 4th, 2018

Thank you for submitting your question regarding Penny. Skin disease is frustrating as many conditions can look the same. I would have a fungal culture performed to check for ringworm and skin scrapes to check for mites. If it isn't either of these, I would put her on antibiotics to treat for a dermatitis. I would also look down her ears canals to ensure she has not been scratching secondary to an ear infection. I hope this information helps and is a good starting point for you.
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