Home » Health » ‘My Cat Pees A Lot At Once!’ Check If Any Of These Could Be The Cause

‘My Cat Pees A Lot At Once!’ Check If Any Of These Could Be The Cause

by | Health | 0 comments

We're an Affiliate

As an Amazon Associate, we earn from qualifying purchases. We may receive a commission, or some sort of compensation, when you purchase any products and/ or services using links on this page.

Dogs often need to undergo a lengthy potty training period with their owners. But cat owners, well, they have the luxury of their pets basically potty training themselves. However, there are some times where you may find yourself thinking, “My cat pees a lot. Why is this happening? Is this normal?”.

Cats are naturally clean and particular about their bathroom areas. They usually only need to be shown their litter boxes a couple of times to get the general idea.

After that, it’s usually a pretty private and painless process. Many urinary issues with cats are serious. So any changes in their frequency of urination should be noted and discussed with your vet.

My Cat Pees a Lot at Once. Why?

You will usually notice it right away if your cat pees a lot at once, very frequently or is urinating outside the litter box. You will naturally worry about what is causing this change. There might be a couple of reasons for this.

First, it could be a behavioral issue and you will need to deal with it in a proper way. Spraying is a common behavior among cats. And you can put an end to this problem with programs like this one. Majority of the times, this is the case with most cats.

The other reason could be something more serious. If your cat pees a lot, it can be due to one of many medical conditions that can cause excessive urination in cats. There are many diseases that can cause your cat to have urinary issues. A lot of these diseases have similar symptoms.

The five causes mentioned below are some of the most common ones. And as you will see, any changes should be discussed with a veterinarian so they can test and treat any diseases before they get too serious!

Territorial Marking

Cat Spray Stop
Sometimes an increase in urination can be caused by territorial marking. Marking that starts after a cat has lived in its home for a while can be a sign of insecurity or anxiety.

A new pet in the house, furniture rearrangement or even seeing stray cats from the window can cause a pet to feel the need to mark. If your cat stands and sprays rather than squatting, then it is probably a behavioral issue rather than a medical one.

One way to remedy it is to look closely at the changes that have been made recently and try to make your cat more comfortable at home.


When your cat pees a lot, one of the most common reasons is often feline diabetes. A main complaint is a cat drinks a lot of water and pees a lot, similar to many of the diseases on this list.

Cats with untreated diabetes also usually have an increased appetite around the same time their drinking and urination increases.

As diabetes progresses, your cat may also lose weight. Eventually it will lose appetite and become lethargic or even fall into a coma.

This is why when a cat drinks a lot of water and pees a lot, it’s a good idea to take them to a vet as soon as possible. A vet will check their blood sugar and other levels because there are a lot of other feline diseases that match the symptoms of diabetes.


An example of another disease that can affect cats and their urinary output is hyperthyroidism.

Like diabetes, a hyperthyroid cat drinks a lot of water and pees a lot and will be very hungry. Unlike diabetes, which can make a cat lethargic, a hyperthyroid cat will often be hyperactive and can even be aggressive.

Untreated hyperthyroidism also leads to quick and extreme weight loss that can eventually cause the cat to waste away.

Early vet care is essential for catching hyperthyroidism. Since the cat pees a lot at once, this along with other symptoms can cause dehydration and damage the internal organs.

Kidney Disease

Unfortunately, cats are very susceptible to kidney disease. Older cats especially often develop kidney disease in their golden years. If your cat pees a lot at once, it may be showing the first signs of kidney disease. Look out at the following signs:

  1. The urine will be very dilute.
  2. Their breath will be extra stinky.
  3. Loss of appetite and weight loss and
  4. The cat will eventually become dehydrated and lethargic.

Kidney disease can sometimes be prevented by feeding cats soft food throughout their life. Having a water fountain to encourage drinking is also a good idea.

Cats were originally desert animals. They often don’t drink enough water without little bit of extra encouragement. This is tough on their kidneys.

Cats don’t always have to be old to develop kidney disease. Toxins such as lilies that may be kept around the house as houseplants or garden plants can cause kidney failure if ingested.

If you have these plants around and suddenly you feel ‘My cat pees a lot!’, it’s a good idea to check for signs that your cat may have been nibbling on them. If you find chew marks, take your cat to the vet right away.

Feline Lower Urinary Tract Disease (FLUTD)

Another condition that is often the culprit when it seems like your cat pees a lot is FLUTD. However, unlike with other conditions related to increased urination, it may only appear that your cat pees a lot at once.

In reality, FLUTD cats may not actually be peeing much at all. FLUTD stands for “Feline Lower Urinary Tract Disease” and is extremely painful and can be very dangerous.

When it looks like your cat is peeing a lot, they may actually be straining due to a stone obstruction or inflammation, which means urine isn’t able to pass normally.

A cat with FLTUD may cry in pain when picked up, try to pee outside of the litter box, and position itself to pee multiple times without much coming out.

They may also have blood in their urine. If FLUTD goes untreated, the cat may actually get poisoned because urine gets backed up and the toxins that are normally eliminated enter the bloodstream.

Usually, male cats get FLUTD. It can sometimes be prevented by a diet low in magnesium and making sure they get plenty of fluids.

If You Are Thinking ‘My Cat Pees a Lot’, It’s Definitely a Reason to Worry

Cats often face a lot of different urinary issues that can result in them peeing excessively, peeing outside of their litter box or peeing frequently.

So if you are thinking “My cat pees a lot!”, it’s important that you pay attention to what your cat is leaving in their litter box. Always consult a vet if anything seems out of the ordinary.

A vet can run tests to see if your cat has a disease and then prescribe medicine or recommend a special diet. If the problem seems to be behavioral, then you can work on that with the peace of mind that nothing else is wrong with your pet.