Petco Text Logo
Petco Pet Logo

My dog had puppies with her brother. Will they have health issues?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | unspayed | 2 years and 11 months old | 71 lbs

We have 2 half German Shepherds. There father was from a champion bloodline. They are 2yrs old and accidentally she has had a litter of puppies. This was not planned but none the less we have beautiful white puppies. Will this affect them in their genetics since the mother and father are brother and sistdr? By the way the dad has already been taken to vet and is now neutered. Can't get the mom spayed at this time because she is nursing.

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Strydom, DVM

Veterinarian

Published on August 5th, 2018

Yes, genetics can go awry when related animals (including humans) mate. It is not recommended that they breed, as you know, but what's done is done at this point. There is not going to be any way for you to know what their genetics are so all you can do is treat them as normally as possible and hope for the best. Sometimes they are just fine. If you see no outward abnormalities that doesn't mean there aren't some internal ones. Again, there is nothing you can do about it at this stage except be aware that some problems may arise and those problems don't always show up early. It may be years down the road before anything is noticed. Try not worry too much and just treat them like normal. Hope this helps. Best wishes!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored