Petco Text Logo
Petco Pet Logo

My dog is lethargic with a painful swollen bite. Vet needed?

Updated On September 23rd, 2025

Pet's info: Dog | Yorkshire Terrier | Female | unspayed | 9 years and 10 months old | 7 lbs

My dog is feeling lethargic and In pain. Her skin is swelling where we think a spider bit her. It looks like a giant blister with liquids inside a little bigger than a grape and the size of a quarter. She is a yorkie. How do we tell what spider it is to get proper treatment

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Mariya Gugel, DVM

Veterinarian

Published on November 30th, 2017

I'm sorry Sally is not feeling well! The large blister definitely looks like it can be caused by an inset bite and is painful, but it is also concerning that she is lethargic. I recommend having her looked at by a vet as soon as possible, in case there is systemic toxicity from the bite.

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