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What is Peeing Blood?

If your cat’s urine changes from its usual yellow to a brown or brownish-red, this may indicate the condition known medically as hematuria, or blood in the urine. Hematuria may be accompanied by crying when using the litterbox, or missing the litter box entirely. Blood-tinged urine is a sign to contact your veterinarian as soon as possible.  

  • Dehydration
  • Physical trauma
  • Urinary cancer
  • Urinary crystals
  • Urinary tract infection

Why Peeing Blood Occurs in Cats

Cats may end up with blood in their urine for a number of reasons, some of which have a simple fix while others have a more complicated treatment plan. Some of the more common reasons include:

Dehydration

Felines in the wild get the largest percent of their moisture from the prey that they eat. Housecats who are fed dry food are not getting as much hydration from their food, and they must supplement with fresh water more often. As cats have a low thirst drive, they may not be motivated to drink, particularly if ill or as they age, and in those circumstances, it may be advised to add wet food to the diet as well. 

Physical Trauma

In some cases, physical trauma can cause internal bleeding which leaks into the urine at some point along the urinary tract. In these situations, your cat may also show signs of pain or weakness and may be reluctant to eat. If you believe your cat is bleeding internally due to trauma, the cat should be taken to the veterinarian right away. 

Urinary Cancer

The tumors and ulcers that form when cancer attacks the urinary system can cause hematuria to develop. Although fairly rare compared to the other possibilities, this should always be ruled out; this is particularly true for senior cats or cats that continue to exhibit blood in the urine after antibiotics. 

Urinary Crystals

Microscopic crystals may clump together in your cat’s urine and cause larger crystals that are unable to pass through the urinary tract, and that can cause damage to the tissue membranes. These crystals, as they grow larger, may develop into bladder stones and can potentially be fatal if left untreated.  

Urinary Tract Infection

Known by a number of different names, including feline interstitial cystitis (FIC), feline lower urinary tract disease (FLUTD), or feline urologic syndrome (FUS), infections in the urinary tract can cause your cat a great deal of pain. Many cats attempt to find a new place to go to the bathroom where it won’t hurt, making it more likely for the cat to soil the house when it is experiencing this condition. A urinary tract infection can occur at any point along the urinary tract, including within the bladder itself.

What to do if your Cat is Peeing Blood

If you notice blood in your cat’s urine, you should definitely contact your veterinarian, and they will most likely wish to examine your pet as quickly as possible. If bloody urine is followed by an inability to urinate, a distended abdomen, or lethargy and pale gums, it should be treated as an emergency, and the cat should be transported to the nearest veterinary clinic right away. Once you are in the clinic, your cat will likely undergo a complete physical with a focus on the condition of the abdomen, as well as standard diagnostic tests such as a complete blood count, biochemical profile, and, of course, a urinalysis. 

The examining vet may also wish to get a clearer image of how the urinary system is functioning by utilizing x-ray or ultrasound technology in order to uncover obstructions such as bladder crystals and stones, If any growths are located within the urinary tract, a tissue sample will be taken, and a biopsy performed to see if it is cancerous or benign.

Prevention of Peeing Blood

Dehydration on its own can cause bloody urine, and many of the other conditions that lead to hematuria are often triggered or made worse by a lack of hydration, so one effective way to help protect your cat from these disorders is to ensure proper hydration. Felines do not have a high thirst drive in general as they typically receive a large portion of their hydration from the foods they eat in the wild, so sometimes they need to be convinced to drink water. 

Switching to a wet food diet quite often will help with hydration for cats that are reluctant to drink water, as can adding an ice cube in with the food. Keeping several water bowls throughout the house full of clean, fresh water may encourage your cat to drink more on their own, and sometimes adding a very small amount of tuna juice or chicken broth may make the water more enticing to your cat.

Cost of Peeing Blood

Treating a feline for a cancerous condition can be very costly. For example, to treat bladder cancer the cost may average at $6000. To remove ureter stones, the expense may be $1200.

Peeing Blood Questions and Advice from Veterinary Professionals

Princess
Siamese
9 Years
Fair condition
1 found helpful
Fair condition

Has Symptoms

Bloood in urine

Medication Used

Metacam

I took my 9 year-old cat in for a checkup last week and they discovered blood in her urine. The urinalysis came back negative for any bacteria so they concluded it might be stress-related. Her bloodwork came back normal too. They prescribed an anti-inflammatory. I think there is still blood in her urine. Should I take her back in for x-rays/ultrasound?

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Blossom
American Short Hair
15 Years
Serious condition
2 found helpful
Serious condition

Has Symptoms

Bloody Urine
Increased thirst
Smell

Cat had a UTI weeks ago and it got better. Now she’s peeing and the Irvine smells weird and it doesn’t even look like urine, only blood spots. She also moved her sleeping area closer to where she has peed and doesn’t want to sleep where she did. I wouldn’t be worried if it looked like a UTI, but this is spots of straight blood and it’s on carpet and laminate flooring that it’s visible. The weird smell is also new

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Jane
Domestic longhair
11 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

peeing out of litter box
Blood In Urine

Our cat is 11 years, old, she weighs 16 pounds and is quite obese. She recently started peeing on specifically Nylon fabric items and we noticed blood in her urine. We leave for a trip in 3 days and she will be with someone else for the whole week. I'm scared that something will happen while we are gone, what is the best thing for us to do?

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Luna
siameses
3 Years
Serious condition
0 found helpful
Serious condition

Has Symptoms

peeing out of litter box
Peeing blood
constunt peeing
seems to be in pain

Luna has been peeing blood for a while, but today it got a whole lot worse. She is finding any other place than the litter box to pee, and she has done it about 5 times since we got home 3 hours ago. And sometimes when we pick her up, she seems to be in pain. I don't know what the problem is, and am wondering if we should take her to a vet.

Of course you should take her to a Vet, BEFORE SHE DIE‘S ! How would you like to be in pain and peeing blood ! What a stupid question you ask. Mabey you should not have this pet since you are that stupid.

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Loki
stray
2 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

Thirst
Frequent Urination
Blood In Urine

My cat has been peeing everywhere but the litter box and he has blood spots in his urine,it looks like he strains to urinate sometimes but will still pee on furniture he's peed on since this started which is a week now, I'm not too sure what it is but I'm gonna try wet food and make sure he's hydrated but if it doesn't clear up in a week then the vet we go

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Lloyd
Tuxedo
3 Years
Moderate condition
1 found helpful
Moderate condition

Has Symptoms

Straining To Urinate
Frequent Urination
Blood In Urine
Urinating Outside Litterbox

Medication Used

Clavamox antibiotic- oral

Started with what seemed like blockage from crystals— shortly after the initial vet visit he became blocked. He was treated and on a catheter for a few days before he was brought home.
Frequent urination everywhere started, then he started bleeding. We rushed him in, and he was given an antibiotics shot that was supposed to last 2 weeks.
Afterwards he seemed mostly fine— the frequent urination all over the house calmed down. But we still see blood occasionally. The two weeks ended 7 days ago.
We aren’t sure if this is normal? It is diluted blood.

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Miles
Domestic shorthair
3 Years
Moderate condition
3 found helpful
Moderate condition

Has Symptoms

Excessively using bathroom
Cant pee
peeing in house
Peeing blood,

Just took my cat to the vet for a uti,(excessively trying to use bathroom,using bathroom out of box, peeing very little to none at all, and 6-7 times within an hour.) They gave him an antibiotic shot and later today he started peeing blood. Im going to call when I can, but
They arnt open. Will he be okay? Blood started same day as antibiotic.

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Tom
3 Years
Mild condition
0 found helpful
Mild condition

Has Symptoms

Blood In Urine

Tom was seen by his vet yesterday for a suspected tapeworm. The vet examined him and noticed his bladder seemed a bit full. He told us to keep an eye on him and if he did not urinate by morning to bring him back. He went back this morning, but urinated in his crate. The vet examined him again and said he still had urine in his bladder. He took a urine sample to rule out crystals. The test came back with no crystals. So we are just watching him to ensure he is urinating. Tonight I noticed blood in his urine. Could this be from the urinalysis?

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Garfield
tabby
3 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

Peeing blood and urinating

My cat had his shot for his uti but is peeing blood alitte bit and had oral antibiotics before that when will the medicine stop making him pee blood we thought he was done peeing blood but we but saw in the bathtub

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
Typically once an infection is treated and the urinary tract is healed, a cat will stop peeing blood; however it is possible that the infection is still present and if this is the case it may be worth having a culture and sensitivity test done to find an antibiotic the infection is susceptible to. Regards Dr Callum Turner DVM

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tilly
domestic short hair
2 Days
Moderate condition
1 found helpful
Moderate condition

Has Symptoms

Blood In Urine

My make cat is peeing blood he is an indoor/outdoor cat about 2 years old. We use Purina food. My thought is crystals and I do have both clavamox 62.5 mg and I also have. Clinda cure liquid 25mg/ml available for immediate treatment he weighs approximately 15 lbs. What would your suggestion be. No fever acting completely normal besides the blood.

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
Without examining any patient I cannot legally recommend the use of any prescription medication; also any antibiotics you may have lying around may be out of date, stored incorrectly, contaminated etc… also it is irresponsible to randomly give antibiotics without a diagnosis given the current antibiotic crisis we are facing. Urinary tract infections and urinary stones are common causes for the presence of blood in the urine, but other causes may include poisoning, trauma, kidney disease among other causes. You should visit your Veterinarian for an examination and don’t attempt to give any antibiotics you just have to hand. Regards Dr Callum Turner DVM

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Hunter
Manx
1 Year
Fair condition
3 found helpful
Fair condition

Has Symptoms

Blood In Urine

My cat is bleeding in his urine it just started today he did have a chicken wing on Sunday during the football game but we got it away from him before he could break the bone. I am on a budget but I am also very worried about Hunter.

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
There are various causes of blood in the urine which may include urinary tract infections, urinary stones, poisoning, trauma, tumours among other causes; urinalysis would be useful to look for signs of infection or other issues at a minimum, you should consult your Veterinarian regardless of cost as any cause most likely would require a prescription medication. Regards Dr Callum Turner DVM

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Veronica
Cat
23 Years
Mild condition
0 found helpful
Mild condition

Has Symptoms

Blood In Urine

I am reading thru the possiblities here for a cat peeing blood. I just noticed it in the last few days. She had spotted it one day then it was fine, now this morning I noticed that it was pink. She had been missing the litterbox and did pee on a rug which she normally does not do. I am thinking it could be a UTI but can this go away on its own or any home remidies I could try first? My cat is 23, and indoors never been outside and I am afraid they will force me to get all the shots which I cannot afford. I will contact my vet this morning, I am sure they will want me to bring her in but I wanted to get another opinion as well.

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
In a cat Veronica’s age there are many causes for blood in the urine which may include urinary tract infection, urinary stones, tumours, reproductive tract disorders, trauma, clotting disorders among many other causes; it is important to have Veronica checked by your Veterinarian so that the right diagnosis can be made, also I do not believe a Veterinarian would push you for vaccinations etc… at her age especially if she never had any. Regards Dr Callum Turner DVM

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Ginger
Tabby Cat
3 Years
Critical condition
2 found helpful
Critical condition

Has Symptoms

Blood In Urine
Cold

I found an abandoned cat.He was so emaciated,and having a cold.I brought him back home,clean up abit and made him eat.But he just wouldnt eat that I have force it bit by bit down the throat.Hes drinking milk by himself,doesnt look that he has trouble swallowing.I could not afford to send him to the vet,so I bought some cold meds fr the pet store.Today theres some traces of blood in his urine.He is still abble to walk normally,no shaky or unbalanced movements.Did all I can think off.Please help me.He cannot go like this without food right?I am so worried and feel so helpless that I cant afford a vet visit

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
You should try to get some veterinary attention for Ginger since we have no history for him and the lack of appetite may be due to a dental issues, foreign object, parasites or other issue; you should try to feed some smooth wet food mixed with water and syringed slowly into the mouth, also crush up a worming tablet into one of the mixes to cover that base. There are charities which can help with the cost of veterinary care, check the link below. Regards Dr Callum Turner DVM www.dogingtonpost.com/need-help-with-vet-bills-or-pet-food-there-are-resources-available/

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Mila
American Shorthair
5 Days
Serious condition
1 found helpful
Serious condition

Has Symptoms

Blood In Urine, constant urination

Medication Used

Clavamox antibiotic- oral

Hello! I took my cat in this week for a possible UTI. We couldn’t get any pee from her so we put her on antibiotics and pain meds until we could get a pee test this upcoming week. But now 4 days after we started treatment, she started going more often and is now peeing a little bit of blood. Should I take her in again for an emergency visit? Thank you in advance.

Dr. Michele King, DVM
Dr. Michele King, DVM
1610 Recommendations
If Mila is getting her antibiotic as prescribed, you may be okay to continue that medication and keep your appointment for this upcoming week, as that should be treating any existing infection. If she continues to have blood in her urine or continues to be going more often, you may want to have her recheck sooner than her original appointment, but if she is eating and drinking and seems comfortable, you should not have to take her to an emergency clinic.

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China
Unknown
3 Years
Fair condition
1 found helpful
Fair condition

I noticed here and there a few drops of blood on the floor and today my cat went pee in the litter box and seen a bit of blood pee.. what could this be or mean and what should I do? He's 3 years old.

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
Blood in the urine may be caused by infections, urinary stones, poisoning, tumours, kidney disease, trauma among a few other conditions; without examining China and doing a urinalysis I cannot say what the underlying cause is, if the blood continues to be present I would recommend visiting your Veterinarian for an examination. Regards Dr Callum Turner DVM

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Lucky
2 Years
Moderate condition
1 found helpful
Moderate condition

Has Symptoms

Blood In Urine

Hi I have a tabby & it just start peeing blood It is crying and biting I’m sure it is in pain because this cat is super mellow and never bite anyone before

Read more at: https://wagwalking.com/cat/symptom/why-is-my-cat-peeing-blood

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Tabs
Unknown
17 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

Blood In Urine
Lethargic

Senior cat adopted from shelter two years ago seemed healthy and happy until I got home and realized he had tapeworms, had that treated and an onslaught of issues began to arise. After multiple trips and tests found major food allergies. After trying several brands over the past two years based on bloodwork testing started a new wet cat food grain free chicken a month ago. It appears he is no longer tearing his fur out, but still wearing diapers as he would just defecate in his cat bed and continue to sleep in it. However I’ve noticed the diaper seems to have dark brown spots. I assume blood. He also won’t stand for long periods of time to finish his can of wet cat food he will eat half then fall over and just lay there. If I move the food to his mouth he will gladly finish from where he is. Same with his water, most the time he will get up out of bed to drink from his water bowl next to him then plop back down. He is not very mobile right now (I can hear and feel clicks in his joints) but still purring and snuggling when I sit with him. He is 17 at this point and I feel it would just be best to put him down rather than put him through another slew of testing.

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Noor
Tukis
2 Years
Fair condition
0 found helpful
Fair condition

Has Symptoms

Lower body pain

Hi, i have r3cently taken my cat to a vet for physical trauma as i noticed he wasnt walking properly after he came back home. Doctor has given pain medicine for 5 days. However, i notice blood in hs urine after the trauma, though it has decreased a lot its still there can you tell me for how many days i can wait before i take him to vet again.? He os eating well and even walking and climbing now.

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
Blood may be present after a traumatic injury, but if the amount of blood is decreasing and Noor is improving you should keep an eye on him for the time being but I would also recommend that you call your Veterinarian to inform them of the blood so that they can add it to their notes and they may offer some other advice based on their previous examination. Regards Dr Callum Turner DVM

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Kitten
tabby
15 Years
Serious condition
0 found helpful
Serious condition

Has Symptoms

Blood In Urine

My 15 year old cat has been peeing blood for months now, even after antibiotics. Although she otherwise seems fine I am concerned she lives in daily pain and I am thinking it is time to euthanize her, as we wouldn't put her through surgery at her advanced age. My question is, is constant blood associated with constant pain?

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
It depends on the underlying cause of the blood since there are various conditions which may cause the presence of blood which may include urinary tract infections, tumours, poisoning, hormonal conditions, kidney disease, urinary stones among others; you should visit your Veterinarian to determine the underlying cause and to see if this is something treatable or manageable. Regards Dr Callum Turner DVM

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Sonic
Bengal
16 Years
Serious condition
1 found helpful
Serious condition

Has Symptoms

Uncontrolled bleeding from bladder

5th day in ER. On 6th transfusion and rbc still at 12%. Still seeing blood. Sonic has been on antibiotics then changed his antibiotic. Has a bacterial infection shown in culture but won't know what strain until tomorrow (36 hours), was given an herbal supplement to slow bleeding but hasn't worked. All other blood work values are good and good clotting function. No cancer cells in urine and ultrasound found thickened bladder wall. ER vets are running out of options. Sonic seems to be feeling fine, playing, eating, alert. Is there anything any of you can think of to do further and do you think getting the infection cleared will then slow or stop the bleeding?

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
Infections are a common cause of urinary tract bleeding, hopefully once the infection is treated the bleeding should stop; however if there is another underlying cause like cancer, poisoning, traumatic injury etc… it may continue to bleed. I cannot think of anything further to do after an ultrasound; wait for the results of the culture and sensitivity, then see what your Veterinarian suggests. Regards Dr Callum Turner DVM

Thank you. It is difficult to wait out the 36 to 48 hours for the culture when he continues to bleed like this but need to know the correct antibiotics to be effective. He is being kept stable by all the transfusions so that's a good thing.

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Puddles
Cat
10 Years
Moderate condition
0 found helpful
Moderate condition

Have been and seen vet about my 10yr old cat peeing blood done blood test everything came back clear she was put on nutraease tablets for 7 days but hasnt changed anything

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
There are various causes for urinating blood which include infections, urinary stones, inflammation, trauma, tumours, clotting disorders among other causes; without examining Puddles it is difficult to say what the specific cause of the blood is, however you should return to your Veterinarian for a more thorough examination. Regards Dr Callum Turner DVM

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Carter
N/a
4 Years
Serious condition
0 found helpful
Serious condition

Has Symptoms

Blood In Urine

My cat just peed and it was all red thid is the first time this has happend and he is nuterd and they thaught he had lukemia borderline but nothing like this has happend he is about 4 years old

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