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My rat's neck abscess burst. What is this black scab after it drained?

Updated On September 23rd, 2025

Pet's info: Small Animal | Rat | Male | unneutered

My rat buddy had an abscess on his neck, it burst and drained well but today I noticed he has a big black mark/ scab were the abscess was what is this? Please help me!!

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Answered By Todd Cecil

Veterinarian

Published on March 9th, 2019

Thanks for reaching out about Buddy. The dark skin over the abscess if probably necrotic skin, which will likely fall off. But these abscesses rarely heal without antibiotics. Typically is will scab over, trapping bacteria under the skin, which will then multiply again, re-creating the abscess. Then the cycle will continue. A veterinary visit is recommended. Good luck.

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