Renal

Chronic Kidney Disease

Progressive loss of kidney function over months to years.

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Expert guides

Chronic Kidney Disease in Dogs: The Owner's Complete Guide

Go looking for information after your dog is diagnosed with chronic kidney disease, or after a vet mentions "borderline kidney values," and you'll hit something frustrating fast: almost everything written about pet kidney disease is about cats. Page after page assumes a feline patient. Dogs get kidney disease too, it matters just as much, and...

Dr. Alastair Greenway11 min read

Chronic Kidney Disease in Cats: What Every Owner Needs to Know

A diagnosis of chronic kidney disease is not the end of your cat's good life. That is the single most important thing to say, before any of the detail, because the word "kidney" lands heavily and the internet fills in the rest. The disease is usually not curable, and there is no point pretending otherwise,...

Dr. Alastair Greenway10 min read

Is Your Pet at Risk of Kidney Disease? Breeds and Early Signs

Kidney disease is at its most manageable when it's caught early, and yet the early signs are precisely the ones owners are most likely to wave away as "just getting older." A cat drinking a bit more from the tap. A dog that has lost a little weight without anyone quite noticing when. A coat...

Dr. Alastair Greenway9 min read

What Causes Chronic Kidney Disease in Cats and Dogs?

After a kidney diagnosis, owners almost always ask the same thing, often with a catch in their voice: why? Why did this happen, and, just beneath that, did I cause it? It is one of the most natural questions in the world, and it deserves a straight answer. So here it is, up front: sometimes...

Claire Greenway9 min read

Your Pet Has Kidney Disease: The First 30 Days

A kidney disease diagnosis lands hard. One moment your pet is just a bit off, drinking a little more, perhaps a touch thinner, and the next a vet is using words like "chronic" and "kidney" and "stages," and the floor tilts. Then you get home, type it into a search engine, and within about ninety...

Claire Greenway9 min read

Reading Your Pet's Kidney Bloods: A Plain-English Guide

A printout of your pet's kidney bloods is a wall of abbreviations and numbers that mean very little at first glance. Creatinine, SDMA, urea, phosphate, a thing called specific gravity, each with a value and a reference range, some perhaps flagged high. The natural pull is to scan for the scariest number and brace. There...

Dr. Alastair Greenway11 min read

Understanding IRIS Staging: What Your Pet's Stage Actually Means

Your vet has used a word that sounds clinical and a little frightening: your dog or cat is at "stage 2", or "stage 3", kidney disease. It is natural to hear that as a verdict, a fixed position on a countdown. It is not. A stage is a map reference. It tells you and your...

Dr. Alastair Greenway13 min read

Potassium, Anaemia and Acidosis: The Supporting Cast of Kidney Disease

Behind the headline kidney numbers, the creatinine and SDMA and phosphate, sit a handful of supporting problems that kidney disease can cause: low potassium, anaemia, and a gradual acidity in the blood. Each one sounds alarming when it appears as an unfamiliar word on a results sheet, and each can feel like a fresh disaster...

Claire Greenway8 min read

Helping Your Pet Feel Better: Comfort Medications for Kidney Disease

Some kidney medicines slow the disease. The ones in this article do something just as precious, and more immediate: they make your pet feel better today. Nausea, a fading appetite, and a low-grade, persistent queasiness are common in kidney disease, they are genuinely miserable for a pet, and they are deeply treatable. Yet time and...

Claire Greenway9 min read

Protein in the Urine: Why the UP/C Ratio Matters, Especially in Dogs

Protein in the urine sounds like a minor footnote on a results sheet, and it is anything but. A kidney filter that leaks protein is both a sign that damage has occurred and, it appears, something that helps drive the damage faster. It is also one of the more treatable parts of kidney disease, which...

Dr. Alastair Greenway8 min read

High Blood Pressure and Kidney Disease: The Silent Risk

High blood pressure travels alongside kidney disease far more often than most owners realise, and it is dangerous for one particular, unsettling reason: it is silent. There is usually nothing to see and no symptom to notice, right up until something breaks, and in pets the first visible sign can be sudden blindness. That is...

Dr. Alastair Greenway8 min read

Phosphate Binders: When the Renal Diet Isn't Enough

Phosphate is the number the whole renal diet is quietly chasing, as our guide to that diet explains. Controlling it is one of the few things genuinely shown to change the course of kidney disease, as well as how well your pet feels day to day. The renal diet is the first and most important...

Claire Greenway9 min read

The Renal Diet: The Single Most Important Treatment You Control

Of everything in the kidney-disease toolkit, the prescription renal diet has the best evidence for extending your pet's good-quality life. And it is the one big lever you control directly, at the food bowl, every day. So when your vet tells you to switch a dog or cat to a "kidney diet," and you find...

Claire Greenway10 min read

Getting a Cat to Eat the Renal Diet: The Owner's Battle Plan

Getting a cat onto a prescribed kidney diet is one of the genuinely hard parts of managing kidney disease, and almost every owner struggles with it. If your cat has turned its nose up at the food your vet prescribed and is sitting by an untouched bowl, you are not failing, and your cat is...

Claire Greenway11 min read

Everyday Life with a Kidney Patient: Litter, Comfort and Routine

A kidney diagnosis can feel as though it is about to take over your whole house, turning your home into a clinic and your days into a timetable of treatments. It does not have to be that way. A handful of small, sensible changes to your pet's environment and your daily routine make caring for...

Dr. Alastair Greenway8 min read

Weight and Muscle: The Home Signs That Matter Most

When an older pet slowly loses weight, it is the easiest thing in the world to put it down to age. "She's just getting on," we tell ourselves, "they get a bit lighter as they age." Sometimes that is true. But in a pet with kidney disease, gradual weight loss and the quiet wasting of...

Claire Greenway8 min read

Keeping Your Pet Hydrated: A Water Strategy for Kidney Disease

Here is a quiet paradox at the heart of kidney disease: a pet can be drinking more than ever and still be running closer to dehydration than a healthy animal. That is because failing kidneys lose the ability to hold onto water, so they pour it out in dilute urine faster than drinking can quite...

Dr. Alastair Greenway8 min read

Subcutaneous Fluids at Home: A Complete Beginner's Guide

A needle, at home, given by me? Is that cruel? Could I actually do it? When a vet first suggests giving fluids under the skin at home, most owners feel some mix of alarm and doubt, and those are the questions that surface. So let me reassure you straight away. Thousands of ordinary owners, with...

Dr. Alastair Greenway10 min read

Concurrent Conditions: When Kidney Disease Doesn't Travel Alone

Older bodies rarely have just one thing wrong with them, and kidneys are no exception. By the time a cat or dog is old enough to develop chronic kidney disease, they are often old enough to be carrying one or two other conditions as well, and those conditions do not sit in tidy, separate boxes....

Claire Greenway10 min read

Complementary and Unproven Kidney Treatments: What the Evidence Says

Within minutes of a diagnosis, the internet fills with products promising to help: kidney "support" supplements, "natural" remedies, "detox" cures, each pitched at exactly the worried, loving owner you have just become. Some of these products have genuine, if modest, evidence behind them. Many have none. A few are simply exploitative, selling false hope to...

Dr. Alastair Greenway9 min read

Advanced Kidney Treatments: Dialysis, Transplant and What's on the Horizon

Most owners of a pet with kidney disease eventually ask the same hopeful questions. Is there a transplant? A dialysis machine, like people have? A new drug just around the corner? They're completely natural questions, and you deserve a straight, UK-grounded answer to each one, an answer that neither crushes your hope nor sells you...

Claire Greenway8 min read

Acute-on-Chronic: Recognising and Responding to a Kidney Crisis

Chronic kidney disease is usually a slow story, a gentle drift measured in months and years, and most days with a kidney patient are quiet ones. But it can flare hard and fast, and when it does, the question a worried owner most needs answered is "is this an emergency?" The short answer is that...

Dr. Alastair Greenway9 min read

What CKD Care Actually Costs in the UK: An Honest Breakdown

Money is part of the picture with kidney disease, a real and often heavy part, and almost nobody talks about it openly. Owners are left to discover the costs piecemeal, at the worst moments, with no sense of what the year ahead might hold. That silence helps no one, so this guide does the opposite....

Dr. Alastair Greenway10 min read

The CKD Monitoring Schedule: What to Check and How Often, by Stage

A pet with kidney disease gets called back to the vet a lot, and then called back again, with a regularity that can start to feel like a lot. Plenty of owners quietly wonder the same thing at this point: is all this rechecking really necessary, or is the practice "milking it"? Let me answer...

Dr. Alastair Greenway9 min read

Getting the Most From Your Vet Appointments With a Kidney Patient

Managing a pet with kidney disease is a partnership, and a slightly unusual one, because you and your vet each hold half of what is needed. You are the expert on your pet at home, how they are eating, drinking, moving, and behaving day to day, and your vet is the expert on the medicine,...

Claire Greenway8 min read

Living Well With Kidney Disease: Pets Who Thrive for Years

The word "kidney disease" lands like a countdown for most owners. It sounds final, the mind leaps to the worst, and a frightened search online rarely helps. So here is the thing I most want you to take from this article, having looked after a great many kidney patients over the years: for a great...

Claire Greenway8 min read

Quality of Life and Saying Goodbye: The Honest Conversation

This is the hardest article in our kidney guide, and there is no way to make the subject easy, so I will simply be gentle with it, and with you. Owners come to this question by two roads: some are facing it suddenly, some are quietly preparing for a day they can feel coming. Either...

Claire Greenway11 min read

When Kidney Disease Progresses: Late-Stage Care and Comfort

There comes a point in kidney disease where the condition you have managed so well for so long starts to ask more of you both. What follows is straightforward and practical, written to help you keep your pet comfortable and to know what to expect, with care rather than alarm. Late-stage kidney disease is a...

Dr. Alastair Greenway8 min read

Breeds prone to Chronic Kidney Disease

Chronic Kidney Disease is seen more often in some breeds than others. If you have one of these, its breed guide covers what to watch for and where to get help.

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