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My dog had a split heat. Will her cycle be normal or unpredictable?

Updated On September 23rd, 2025

Pet's info: Dog | Golden Retriever | Female | unspayed | 178 lbs

Our dog went into heat on Friday (12/29/17) It was a possible split heat. First sign was on (11/30/17) and no signs after 7 days. Earlier days were VERY LIGHT Vet did a vaginal smear on 12/29 and a few cells showed cornification. No white cells present Will she follow a normal heat cycle or does it continue from whee it left off? We have anoth smear scheduled for (1/5/18) day 7 or 8

1 Answer

Most Helpful Answer

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Answered By Lindsey Edwards MVB, BSc, IVCA

Veterinarian

Published on January 2nd, 2018

Split heats by there nature can be unpredictable but the second half does tend to follow an almost normal pattern with breeding expected around days 11-15. Regular smears after day 5-7 are recommended to increase the chance of a fertile mating

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