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My dog is in heat. Can I spay her? How to tell when heat is over?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | unspayed | 6 months and 25 days old

My 6 month old teddy Bear dog (bichon frise and shih tzu mix) just started her first heat. Was planning on getting her fixed next week, but not sure if that is possible now. How long will it last and is there a way to tell when she is finished?

1 Answer

Most Helpful Answer

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Answered By Dr. Kristin DVM

Veterinarian

Published on November 16th, 2018

Many veterinarians prefer to wait to spay until after they are out of heat. It can be done while they are in heat, but there is an increased risk of bleeding, and they may charge an additional fee as it takes longer. On average estrus lasts for 9 days, but can last up to 24 days. I recommend rescheduling your spay until after vaginal discharge stops and her vulva is no longer swollen. Thanks for using Petco Pet Education Center, formerly Petcoach.

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