My dog has a UTI. Why is she still peeing blood on antibiotics?
Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 7 years and 9 months old | 12 lbs
My dog has been on antibiotics for 48 hours for a UTI. She is still peeing blood. Is this normal?
5 Answers
Most Helpful Answer
Published on April 7th, 2017
Poor girl. Yes it can be normal for pets to still have blood in their urine unfortunately for up to 48 to 72 hours after taking antibiotics. However you should see improvement with the blood every day and your pet should still be active alert and relatively stable otherwise.
12Pet Parents found this answer helpful
Related Answers from Veterinarians
-
Published on
Poor Pearl! In many cases, the signs of a urinary tract infection do start to improve significantly after 24-48 hours on antibiotics, but not in all cases. Some UTIs can have complicating factors, such as the bacteria causing the infection could be resistant to the initial antibiotic choice, or bladder stones are also present and are irritating the bladder wall. If Pearl has had no improvement in her urinary signs in another 12-24 hours, she should be rechecked by her vet. If it was not yet done, she may need to have a urine culture performed to determine if the antibiotic will be effective against the bacteria causing the infection. Pearl may also need to have abdominal x-rays to rule out the presence of bladder stones. I hope she's feeling better soon!
3Pet Parents found this answer helpful
-
Published on January 17th, 2017
Zorica's UTI may not be completely cleared up, as she should still be peeing blood after seven days of antibiotics. She could also have bladder stones causing the blood. I would have her seen by a vet again today for these symptoms.
1Pet Parents found this answer helpful
-
Published on April 16th, 2018
Bella's feces are perfectly normal. However the bloody urine is a serious concern. Blood in urine is usually a sign of a severe Urinary Tract Infection, possible bladder stones or, rarely at this age, a cancerous growth or polyps. Bella needs to be seen by a veterinarian for an exam, a urinalysis and possibly blood work to rule out kidney disease. She will need antibiotics and pain medicine. Please take her to a vet ASAP.
1Pet Parents found this answer helpful
-
Published on March 15th, 2017
Poor Iola! Unfortunately, dogs who have bladder stones can develop them again, so this blood in her urine can be a sign of more. It can also be a sign of a UTI. It certainly isn't normal that she has blood in her urine, and given that she has a history of bladder stones, I would have her seen by a vet now. The vet can diagnose what is causing the blood urine and can discuss treatment options with you.
1Pet Parents found this answer helpful
My two year old english bull terrier started urinating blood at the end of urination about 9 days ago. She was prescribed antibiotics and today is the 7th day of her drinking them. Yesterday she seemed better, urinating normally, but today again at t
My dog was diagnosed with a UTI last Monday and started on Clavamox. This past Thursday I noticed blood on the couch when she got up and took her to the emergency vet what you told me that that could be a sign of her UTI and just to keep her on the
My dog has a uti, she has a blood in her Urine. She is given cephalexin and she has been taking it for a day but there is still blood is this normal? If so how long will blood clear up?
We got an 8 week old puppy last Friday. Everything was great until Tuesday morning he started having accidents inside the house. I took him to the vet, they cathed him and diagnosed him with uti. He also had some crystals and protein in his urine. T
8 y.o. Cavashon. Healthy until March. Bladder infection with crystals. 8 weeks antibiotics and started special dog food for dogs with UTI problems also still on antibiotics. Only little pink in urine after 3 days on special food. Now more dark red b
Chichi's bloodwork is normal, still straining but under meds for UTI. She's home but still sad, won't play & lies down most of the time. Is this ok?
My 9 week old Labrador puppy has been on antibiotics for 4 days for a UTI and he is still urinating 4 or 5 times in the space of 15 minutes? Could there be something else going on?
Hello I took my female cat to the vet this morning with a suspected urine infection. How long does it take for the injected 14 day antibiotic to start working? She still has some blood in her urine but is not trying to use the litter tray as much. Th
My eleven year old shih tzu yorkie is dripping dark blood from his penis for 4 days enery morning now. He started antibiotics for a uti yesterday. When will his bleeding stop?
I have a 15 year of beagle. She had urinary frequency and I saw a drop of blood at the end of flow. Vet put her on antibiotics. After 2weeks they did another urinalysis and saw a few red cells, now she is urinating normal but at the end of flow its a
Book an appointment with the pros – our expert vets are here to help.
