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Is your dog drinking more water than usual? Showing bad breath or a loss of appetite? These could be warning signs of kidney disease. This article draws on veterinary expertise to outline the key markers for each stage of canine kidney failure (SDMA, CREA), common symptoms, and prescription diet recommendations \u2014 so you can effectively slow the progression and help your dog live a stable, comfortable life.<\/p>\n
The kidneys are part of the urinary system and are responsible for filtering waste from the blood while maintaining the body’s fluid and electrolyte balance. When the kidneys aren’t working properly, physical symptoms usually follow \u2014 but kidney problems don’t always develop gradually over time. Here’s a breakdown of the difference between acute and chronic kidney disease in dogs:<\/p>\n
Acute kidney disease is most commonly caused by ingestion of toxic substances, or by other conditions such as cardiovascular disease, tumors, or post-surgical infections. It typically presents with obvious symptoms like vomiting, lethargy, or straining to urinate with little or no urine produced. Kidney function can decline within hours to days.<\/p>\n
The kidneys are hard-working organs, and after years of continuous use, their function naturally declines with age and wear. Chronic kidney disease can develop over weeks or even years, and often shows few obvious symptoms in its early stages.<\/p>\n
Every owner wants their dog to stay healthy, which is why it’s important to understand what can put a dog at risk for kidney disease. The main causes can be broadly grouped into five categories: congenital genetic defects or predisposition to abnormal kidney function, dietary imbalance or food poisoning, bacterial infection, and aging.<\/p>\n
Some dog breeds are predisposed to hereditary kidney problems, including underdeveloped kidneys, cyst formation, or abnormal kidney function that can lead to disease. Breeds that require extra attention to kidney health include the Bernese Mountain Dog, Basenji, Collie, Shetland Sheepdog, German Shepherd, and Shar-Pei.<\/p>\n
Accidentally ingesting grapes, chocolate, onions, human medications, or other harmful substances can damage the kidneys \u2014 which are responsible for filtering toxins from the body \u2014 causing cell damage and triggering acute kidney disease.<\/p>\n
Poor oral hygiene, bacterial infections, or exposure to water contaminated with leptospira can all compromise kidney function and lead to kidney disease or kidney failure.<\/p>\n
Dogs that consistently drink too little water or eat a diet heavy in meat can place excess strain on their kidneys, allowing toxins to build up over time. This gradually damages kidney function and can eventually lead to kidney disease.<\/p>\n
As dogs get older, kidney function naturally declines. The body becomes less able to flush out waste products and toxins, which accumulate and can trigger kidney disease. Aging is one of the most common underlying causes of kidney disease in dogs.<\/p>\n
Disease progression varies between individual dogs. Based on the proportion of remaining kidney function, kidney disease is classified into four stages:<\/p>\n
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<\/p>\n![\"Fluv](\"https:\/\/www.fluv.com\/tw\/wp-content\/uploads\/sites\/2\/2025\/08\/fluv_________candace___________.jpg\")
<\/b>Fluv founder Candace Chen<\/h2>\n