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My puppy's vulva and nipples are swollen after heat, plus hair loss?

Updated on September 23rd, 2025

Pet's info: Dog | American Bulldog (duplicate) | Female | unspayed | 10 months and 3 days old | 50 lbs

My puppy had her first heat about a month ago and her vulva is still swollen as well as her nipples. Is this normal? I also noticed a scabby spot that’s localized and recently it turned to a bald patch, I’m afraid it might be mange but maybe I’m over worried since this is my first dog. She is high energy, has a good appetite, but will bite around the area.

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on March 6th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach!

It can take a bit for the vulva and mammary glands to decrease from the hormones. She could also be experiencing a false pregnancy, which is a hormonal imbalance that can cause pregnancy symptoms: swollen mammary glands, milk development, nesting behavior, anxiety, carrying stuffed animals around. It usually resolves in 2-3 months.

Causes for the area of hair loss are: trauma/injury/abrasion, skin infection, ring worm, demodex. I would put her on one of the oral flea and tick medications: Nexgard, Bravecto, or Simparica. All 3 also kill demodex as well. If the spot grows or doesn't resolve then I would have her seen.

I hope this helps!
Vote Icon1Pet Parents found this answer helpful

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