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My 10-month-old puppy's nipples are red. Is she in heat or sick?

Updated On September 23rd, 2025

My puppy is 10 months, I've notice two of her nipples are red. And I've notice that a third nipple is becoming red, what can I do?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on December 25th, 2016

It could be that she is heading into her first heat if she isn't spayed. She is about the right age to go into heat for the first time, and you can see changes in the nipples when a dog goes into heat. If she is spayed, then she could have a skin infection in that area, and I would take her into the vet for an exam on Monday.

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