Increased Urination And Thirst Average Cost

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What is Increased Urination And Thirst?

Veterinarians use the term polydipsia to describe an increased level of thirst. Cats that are urinating excessively are diagnosed with polyuria. These conditions typically occur together because increased water consumption leads to urinating more often. If your cat is exhibiting these symptoms, have him evaluated by his doctor to rule out medical conditions that could have serious consequences.

As your cat matures, his eating, drinking and urination habits may change. While this can be a part of the normal aging process, it might be a symptom of a more serious medical condition.

Symptoms of Increased Urination And Thirst in Cats

The primary symptoms associated with this condition are:

  • Drinking water more often than usual
  • Urinating excessively
  • Urinating outside of the litter box


There are several types of conditions that can cause your cat to drink more water and urinate more often than usual. Some of the most common types affecting domestic cats include:

  • Kidney diseases
  • Metabolic conditions
  • Thyroid issues

Causes of Increased Urination And Thirst in Cats

Increased urination and thirst in cats can be caused by a variety of behavioral and medical issues. Here are some of the most common causes:


Cats age differently than humans and are considered to be seniors after 12 years of age. The aging process often brings some changes in your cat's daily habits that you may not welcome, such as drinking more water and urinating more often. As cats get older, they may also have difficulty urinating in their litter box and you may find them soiling in other areas of the house. 


Increased urination and thirst is often a tell-tale sign of diabetes in cats. This hormonal issue develops when your cat's body cannot make enough insulin. When this happens, your cat will have sugar spilling over into his urine. Your cat is more likely to develop this condition if he is overweight, male, and over 5 years of age. Some other symptoms of diabetes in cats are hind leg weakness, weight loss, increased appetite, and hair loss. 


Hyperthyroidism is a condition that occurs in cats as well as humans. If your cat's thyroid gland produces more hormones than his body needs, he will develop this condition. This typically affects cats after they reach 12 years of age. Other symptoms that may occur with hyperthyroidism are vomiting, diarrhea, seeking cold temperatures, weight loss, increased appetite and increased excitability. 

Chronic Kidney Disease

Chronic kidney disease usually occurs in older cats, but it can affect cats of all ages. It can cause your cat to drink more water than normal and urinate more, as well. In addition, it may also cause nausea, vomiting, diminished appetite and weight loss. Chronic kidney disease causes your cat to urinate more because his kidneys are not functioning normally, which raises his need for water to rehydrate himself. 

Diagnosis of Increased Urination And Thirst in Cats

Your doctor will need to examine your cat to determine the cause of his symptoms. He will take your cat's temperature, weight, heart rate and respiration rate before he does a physical exam. Your veterinarian will also ask you some questions regarding your cat's health history. Be sure to include any information that may help him reach a diagnosis such as the date of symptom onset, previous medical problems and unusual behaviors. Laboratory tests are an integral part of the diagnostic process. Your doctor will draw blood for a full chemical profile and a complete blood count. He will also obtain a urine sample for analysis, as well. An X-ray will also be taken to rule out any abnormalities in your cat's urinary tract or other systems. 

Treatment of Increased Urination And Thirst in Cats

The treatment for increased urination and thirst in cats depends on the cause of the condition. If your cat is healthy in all other aspects, he may just be experiencing the natural effects of aging. Cats diagnosed with diabetes may require insulin injections and a special diet to control their blood sugar. Hyperthyroidism may require your cat to undergo treatment at a specialized veterinary hospital or take oral medications. If your cat is found to have chronic kidney disease, your doctor may place him on a kidney friendly food and treat him with medication as needed. In any case, your veterinarian may recommend monitoring or managing the cat’s water intake on an ongoing basis.

Recovery of Increased Urination And Thirst in Cats

Your cat's recovery will depend on the diagnosis and treatment plan developed by your veterinarian. In many instances, this condition is not treatable and all you can do is manage symptoms. If your doctor diagnoses your cat with a condition that requires medication, he will continue to monitor your cat every few months. It is important to report any changes in your cat's condition as soon as possible to keep him healthy.

Increased Urination And Thirst Questions and Advice from Veterinary Professionals

Maine Coon mix
14 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

Excessive drinking
Excessive urinating

Medication Used

Bravecto flea drops

Ziggy is a 14 year old neutered male cat. Up until July 2018 his checkups have been normal except a heart murmur and a tooth with deca. A couple years ago he had a senior panel done which came back clear and has not had any issues since, so we haven't had another done.
This July we fostered kittens for a day and he was very stressed out. He lost his housemate "sister" who was 20 years old last November and I guess he just wants to be an only cat now. Since the kittens, we let him eat kitten chow to spoil him because he ripped open the bag and was happy. Vet said it wouldn't hurt him to eat some.
He started drinking and urinating excessively, and even now that the kitten food has been taken away for over a month now he is still drinking and urinating excessively. He's calmed down from the kittens being here, although it took well over a month.
He doesn't have any of the typical symptoms of diabetes, UTI, or hyperthyroidism. It's possible it's his kidneys I guess, but we can't bring him to get checked right now.

He is eating normally, his weight is within usual range of 8.5 - 8.8 lbs. His activity level is not changed. He is cranky and irritable as usual, so hard to tell if that's changed or not. That's his usual personality. He was a feral kitten, and still holds onto some of that personality.

Would love some help until we can see the vet to get his urine and blood checked.

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Main Coon
11 Years
Serious condition
0 found helpful
Serious condition

Has Symptoms

Access thirst
Access hunger
Weight Loss
Urinating Outside Litterbox

Simon has always been a bigger cat and he always loved food. For months he has been wanting more food and water. He's lost some weight very fast too which is concerning. He always urinates on the floor and rarely uses the litter box. He's started to search for water on the counter and he's peed on the counter too. He's been tested for diabetes but it came back negative. He also does not get along with our other cat that we got a couple years ago. I don't know what to do anymore.

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Domestic longhair
5 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

Fur Loss,

Karloff is a 6.5kg FIV positive rescue cat who has been with us for two months. He has always had a tendency to over groom, but now his fur is getting very thin. He has diarrhoea frequently and has now started urinating much more and drinking far more water than usual. His pee in the litter tray smells more strongly of ammonia than it used to. He is indoor only, and though often sleepy is also playful and energetic at times.

Dr. Michele King, DVM
Dr. Michele King, DVM
Dr. Michele King DVM
1611 Recommendations
It would be a good idea to have a checkup for Karloff, and probably have lab work run to check his urine and systemic function. There are many reasons that he could be having these problems, and baseline lab work may help give a clue as to what is going on with him.

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Mister Bingley
7 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

Thirst, urination, furballs

The cat in question is called Mister Bingley. age 7. He drinks, eats and urinates a lot. He has seen the vet where he lives and had a blood test, urinalysis, thyroid, and culture test. It was decided he had an ecoli infection and was given antibiotics, clavamox for two weeks. This made no difference. He was given a different antibiotic which made his head hot and he seemed worse. He used to be fed on wet and a little dried food. The dried food has been stopped because of the risk of dehydration. Another thing that appears to have happened when he took the second antibiotics is hairballs. He seems to vomit a hairball every day when he feels hungry, just before breakfast. He has about three tins of cat food a day. At one time he was caught eating string etc from his cat tree and I wondered if that had caused his problem? Please can you suggest what may be wrong with him and what can be done. He is loved very much.

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3320 Recommendations
A common cause for an increase in urination is a urinary tract infection; however other causes may include other infections, hormonal conditions, poisoning, kidney disease among other causes. Without examining Mister Bingley and seeing all test results, it is difficult to weigh in; if a culture was done, was sensitivity testing done as well? If not I would recommend that it is done. Regards Dr Callum Turner DVM

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