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My dog's first heat: Is her bleeding and spotting normal?

Updated On September 23rd, 2025

Pet's info: Dog | Boston Terrier | Female | spayed | 1 year old

My one year old Boston terrier has been bleeding since Feb 26 she’s not fixed is this normal? She’s only spotting now here and there..is this normal??? This is her first heat cycle by the way

2 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on March 13th, 2018

A dog's heat cycle lasts for around three weeks, so if she started on February 26, it should be ending soon. It's normal that she is spotting occasionally, and you know when she's out of heat when the discharge stops. Now if the bleeding continues for longer than three weeks or Sophie develops other signs such as anorexia, thick pus filled discharge, vomiting, increased bleeding, and/or lethargy, this is not normal and she will need to see a vet immediately. Good luck, I hope this helps!

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    Answered By Jenny, DVM

    Veterinarian

    Published on February 12th, 2018

    A normal heat cycle is 3 weeks. The first heat can be different since their bodies are learning and changing so much they have to adjust for it. If she is acting normal and eating and drinking well, then I would monitor her for any changes. If it continues past 3 weeks, then I would get her checked.

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