Petco Text Logo
Petco Pet Logo

Why is my senior dog losing weight, not eating, vomiting, coughing?

Updated On September 23rd, 2025

My dog black lab has lost a lot of weight and this last week has stopped eating completely except a few bites a day maybe. and has been throwing up and coughing like He’s trying to clear his throat he’s also 12

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Elizabeth

Veterinarian

Published on December 12th, 2019

I hate to hear your pup is so sick. He needs to be examined by the veterinarian. Weight loss and not eating are signs of illness and just like people, pets can get sick for many many reasons including kidney disease or even cancer. Since he can't talk and tell you how he feels, he needs a physical exam to begin figuring out the cause. He will likely need some blood work and maybe radiographs. Bring a stool sample just in case. At his age, chronic diseases and cancer become more worrisome. I hope the doctor figures out the cause quickly and that he feels better quickly. Thank you for using Petco Pet Education Center, formerly Petcoach.

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