Petco Text Logo
Petco Pet Logo

My dog is suddenly aggressive with her 3-week-old puppies. Why?

Updated On September 23rd, 2025

Pet's info: Dog | Siberian Husky | Female | unspayed | 1 year and 4 months old

Have a 17 month Siberian husky that had a litter of 5:puppies exactly 3 weeks ago and she is becoming aggressive with the puppies all of a sudden, what is causing this and what should we do?

1 Answer

Most Helpful Answer

Image profile

Answered By Menolly Cote, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on July 10th, 2017

I'm sorry to hear of your concerns with Junior. Mothers can begin to try and wean their pups around four or five weeks of age. This can take the form of walking away when the pups try to nurse or even a light growl or snapping if they are really annoying her. If you feel like Junior is truly being aggressive and not just annoyed with her pups I would be concerned that could be something else going on. She could be in pain from a mammary gland infection called mastitis or have an infection elsewhere that is making her feel ill. I would recommend that you have her seen by your veterinarian. They will perform a thorough physical examination to get a better idea of what may be going on.

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