Petco Text Logo
Petco Pet Logo

Why is my senior dog peeing blood and having accidents indoors?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | unspayed | 9 years and 5 months old

Hi my dog is 9 and she keeps peeing in the house she never used to and I’ve just notice blood red in her urine what do u think it could be

1 Answer

Most Helpful Answer

Image profile

Answered By Jeffrey Milner

Veterinarian

Published on November 5th, 2017

If there is blood in Cassie's urine, she may be experiencing a urinary tract infection. Often the initial cause of these are unknown, but they typically do require antibiotic therapy to clear them up. I would recommend bringing her into your veterinarian some time tomorrow so that they can obtain a sterile urine sample for analysis. They will be able to tell you if there is evidence of infection, and if there is any evidence of sediment or crystals in the urine. Depending on the physical exam findings and your veterinarian's opinion, he may also want to obtain an x-ray of the abdomen to make sure there are no urinary stones in the bladder, urethra, or ureters. Stones and sediment are common findings in dogs. The composition and size of the stones / sediment determine what therapeutic option is best moving forward. Lastly, because Cassie is nine years old, it also may be in your best interest to have some baseline blood work obtained. Frequent urination can be an indicator of liver / kidney disease, though typically it is not bloody. Hope this makes sense. Thanks!

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