My cat's drinking a bit more water. Is it a problem?

Before I say anything: I’m taking him to the vet in two weeks (it takes a while to get an appointment unfortunately–this is a humane society vet), so I’ll be getting a proper diagnosis if there is one. But I’d like some advice if possible, and hopefully you can talk me down from being scared.

My cat Therblig just turned 10, and, since he’s under the impression he’s still a little boy, is his usual pain-in-the-ass but lovable self. Eats plenty (wet food), runs around, piddles appropriate amounts, poop is regular, the whole bit.

However, over the past couple of weeks I’ve noticed him drinking from my cats’ mutual water dish. This is, I admit, what the water dish is for. But I don’t remember ever seeing him drink from it before.

So naturally because I’m a pessimistic hypochondriac with an anxiety disorder, I’m assuming this means he has renal cancer.

Before I work myself into a tizzy, I’ve tried to examine things that have changed around this time that might explain this behavior. I wondered if maybe any of these could explain things?

First, about three weeks ago, I bought a new water dish. The old one was round and metallic and, well, kinda old. The new one is plastic, rectangular, wide and shallow. More like a trough than a bowl. I have to say that I’ve seen all my cats (in addition to Therbie, there’s his mom Mina and his sister Sophie) drink from this version, whereas before, I never used to “catch” them drinking.

Second, there’s been a change in their diet. Let me preface by saying my cats will only eat ONE type of food, in one of two flavors: Purina Savory Shreds in either Chicken&Salmon or Turkey&Cheese. Seriously, they will eat nothing else–ever since I adopted them I’ve tried on and off to slowly wean them to better food, but they’ve pulled hunger strikes and I don’t have the wherewithal to watch them not eat.

Anyway, though they’ve been eating the Chicken/Salmon flavor for a while now, a mess-up at my regular Petco delivery service sent me the Turkey/Cheese flavor. This was almost simultaneous with the water consumption change. It caused two days of everybody throwing everything up (they don’t take well to change)–particularly Therblig, he’s a notoriously finicky eater–but then they adjusted and are eating as usual. I should mention that the Shredded food flavor is the wettest food they have–it’s basicaly floating in gravy. However, it has been a change and I do know the Turkey/Cheese flavor is higher in sodium (0.36 vs. .27 – okay, not a huge difference but still…)

So my question is, while I’m waiting to take him in for a check-up, could either of these explain the increase in water consumption? It’s not like he’s constantly at the water dish or anything. I just notice him there once or twice a day, he takes about eight laps of the water, and that’s about it.

And even if, God forbid, there is something wrong, does it have to be something really awful? Are there non-terminal reasons he could be drinking more? Rationally I know there must be but I just kinda need to be reassured. Not that this will stop me taking him to the vet, of course, I just… like I said, I am prone to anxiety and fatalism and I would like not to drive myself crazy for the next two weeks.

(BTW if you think this is an emergency situation please let me know.)

Thanks guys.

You’ve probably seen him before. Only for some reason, you noticed it this time, and it’s just coincidence that now you’re noticing it all the time. And now your can’t stop noticing whether it means anything or not.

If the output is the same and you don’t notice him struggling with urination in anyway, or acting sick otherwise, he’s probably fine.

Your observations sound relevant. I think a new water bowl can entice more drinking. Also, now that you have noticed drinking as an issue, you will be more efficient at noticing individual instances of drinking.

I wouldn’t think of renal cancer. Diabetes is more common, I’m pretty sure. I’ve had two cats turn diabetic and drink more. We also noticed dandruff and oily looking fur, weight loss, and listlessness. Ours required twice daily insulin shots, but one of them made it another ten years happily getting shots – he’d seek me out at shot time. So, it’s great to look into what you think looks like a change in drinking behavior. That said, statistically, I think the majority of cats whose people may have noticed more drinking don’t turn out to have something seriously wrong.

There are a lot of reasons for increased water consumption in a cat, and renal cancer is waaay down on the list. First, rule out increased salt intake, urinary tract infection, hyperthyroidism, diabetes mellitus, and kidney insufficiency (note–not cancer).

As a vet, I happen to think your cat should not wait two weeks. If it is a bladder infection, that’s a darn long time to be uncomfortable, and it could lead to a kidney infection. I also recommend taking kitty to a vet that will see your cat the same day you call, or at the very least, the next day.

Seconding this advice. Renal cancer is way down the list of differentials for increased water intake in a cat, particularly at the age mentioned.

As others have said–cancer is not the most likely reason, if he is in fact drinking more. Diabetes and renal insufficiency are higher on the list. If he’s lost weight, hyperthyroidism is also a possibility.

Most of these are very treatable. Our cat Fergus was drinking A LOT, and it turned out that he has chronic renal insufficiency. He’s about 15. We give him a couple of dietary supplements, and subcutaneous fluids once a week. We quickly got used to this routine, and it is relatively inexpensive and easy to provide. Fergus bounced back almost immediately, and is more playful and energetic than he has been in years. The vet said that he’s had cats live well with these simple measures for many years.

So, there is really no reason to jump to the conclusion of “cancer”, or even that any problem that would cause excess thirst is necessarily immediately fatal.

Thanks so much, everyone. I really appreciate your taking the time to respond. (Not to mention reading my overlong description.)

Of course today now that I’m watching even more carefully I haven’t caught him drinking. (Except for the gravy from the cat food, but they all do that; there seems to be a contest among them for whoever gets to the bowls first in order to slurp up as much gravy as they can.)

FrillyNettles and KarlGrenze, I would absolutely love to go to a more available vet, but right now I’m extremely low on funds and the Humane Society of NY is the best I’ve got, as far as financial options (plus they’re really wonderful vets). Which sucks for me and especially for the feline trio. I have called and asked to be moved up if they have any cancellations or anything. Unlikely since they charge you just for making the appointment (to deter such cancellations) but you never know.

Plus, I’m going to watch Therbie extremely carefully regarding his behavior around the litter box. If I see any signs of him straining or passing less urine than usual (he has always been, um, quite prolific in that area) then I’ll rush him to the nearby animal hospital ASAP – I know that’s an emergency situation for male cats and I’m not waiting around. Also I’ll look out to see if he’s licking himself excessively. I do know his lower stomach/kidney area feels mushy rather than hard/distended, FWIW. And he’s eating now as I speak. (Ooh… I took long enough to type this that I saw him heading over to the bathroom, so I just followed to watch him in the litter box. Just urine as usual – he always piddles relatively soon after he eats. He showed no apparent distress. I felt like a voyeur though.)

My marginally older cat Mina (she’s only about six months older than her kids–crazy, right? Teenage parent!) happens to be one of those cats extremely prone to FLUTD and I recognize the signs in females–fortunately not as dangerous as in males, I know, thanks to it being far easier for males to get plugged up. But it’s still uncomfortable (for both of us!) and she gets treated for that quickly whenever it crops up. I’ve been very lucky that neither Therblig nor Sophie seem to have inherited that tendency from their mom.

So okay I may have been overreacting last night; like I said I’m prone to hypochondria both for myself and by proxy, so whenever any of the kids* acts odd** I start to get all wound up. But either way a visit to the vet is still in the cards for Therblig; he hasn’t been there in a while anyway. And as I said, if he starts showing any of the distressing signs he’s going right to the ER.

Thank you very very much again for the support and information.

  • Please note I know they’re not kids and I don’t treat them as substitute children; it’s just my shorthand for them.

** “Odd” being a relative term here. They’re all idiosyncratic and also prone to mimicking each other’s weird new habits. If Mina suddenly discovers a new place to sleep, like on a recently emptied shelf, sure enough Sophie will co-opt it in a couple of days, and Therblig will follow. I guess that’s where the term copycat comes from.

And the thread deserves some pictures. Pics of Therblig, Mina and Sophie. The first one is of Therblig last night, the rest are much older.

My first sign that my kitty had diabetes was drinking (and peeing) a LOT more than usual. I noticed the peeing more than the drinking actually. The litter box getting dirty and stinky in 2-3 days rather than a week tends to get your attention. He also was hanging around the bathroom faucet to drink more but at the time I just thought it was cute. Could also be early stage kidney disease, or just some harmless change (hotter or drier weather, etc). See what the vet says.

If he is diabetic and needs insulin (which is a big IF so early on before seeing a vet, but just in case he is)- please please please home test his blood glucose. You can use a regular meter made for humans. Many vets do not recommend or encourage this, but it is really important. A human diabetic would never administer insulin without knowing their BG first, but somehow it is is common practice with cats and dogs. :confused: Of course this is premature since he may not even be diabetic, but it is kind of a personal crusade of mine-- my kitty’s blood sugar went back to normal after a couple of months on insulin and dietary changes, and I shudder to think what might have happened if I had kept giving him the same amount of insulin and wasn’t home testing. :frowning:

Why are you jumping to the renal cancer conclusion? If there is a problem, it’s most likely diabetes. Go to the vet and get him checked out.

Thanks for the good advice, snuffleupagus. (Assuming you really exist… :)) Yes, I will be assiduous re: any glucose testing if diabetes turns out to be the case.

BTW he hasn’t touched the water dish and I’ve been watching him all day. (This is not quite as crazy as it sounds–I live in a studio so if I’m working at home, as I’m doing now, I can pretty much see whatever the cats are doing.) Right now he’s doing what cats do best, i.e. sleeping in a donut-shaped circle.

Hiya Tashakitty. Well, I jumped to cancer because that’s my particular neurosis–see the hypochondria/pessimistic thing I mentioned in my OP. Worst-case scenarios are, very unfortunately, where my panic-prone mind naturally takes me. It’s not an easy life, I admit, which is why I try to at least reach out for others to offer some different perspectives.

It doesn’t help that all five cats I / my family have ever had died of cancer–including the cat who gave me my screenname–although admittedly the youngest was 14 when he got it, but cancer can strike at any age. What can I say, I’m bound to be a bit touchy.

Anyway you’re right and as I said, he’ll be going to the vet and we’ll see what the doc says. Thanks!