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Can brother and sister Shih Tzus breed? What are the health risks?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | 2 months and 30 days old | 3.748 lbs

Can a 2 siblings shih tzu can mate and bear a puppy?

1 Answer

Most Helpful Answer

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Answered By Lauren Kennedy, DVM

Veterinarian

Published on September 1st, 2017

Yes, it is possible for 2 dogs from the same litter to mate and have puppies. However, this is greatly discouraged because the pups have a strong likelihood of having one or multiple birth defects. I would strongly recommend against mating siblings. If they are both intact you may need to keep them separated while the female is in heat to avoid an unwanted pregnancy. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.

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