By Dial A Vet Veterinary Team
Kidney disease means the kidneys are not filtering waste, balancing fluids and electrolytes, or supporting blood pressure and red-blood-cell production as they should. Dogs may develop acute kidney injury (sudden) or chronic kidney disease (gradual). Early signs are easy to miss because dogs drink and urinate more before they look “sick.” Companion page: kidney failure in dogs.
Key takeaways
- Increased thirst and urination are classic early clues, but not the only ones.
- Causes include aging-related chronic disease, infections, toxins (including antifreeze and some foods or drugs), urinary obstruction, and other systemic illness.
- Diagnosis relies on exam, bloodwork, urine testing, and sometimes imaging. Blood values alone do not tell the whole story.
- Care focuses on treating underlying causes when possible, supporting hydration, managing diet, and monitoring complications.
- Refusal to eat, repeated vomiting, collapse, or no urine production needs emergency care.
Signs that deserve a veterinary visit
- Drinking and urinating more than usual
- Weight loss or a dull coat
- Decreased appetite, nausea, or vomiting
- Bad breath with a distinctive uremic odor
- Lethargy or reduced stamina
- Mouth ulcers or dehydration (tacky gums, skin tenting)
Acute vs chronic (plain-language)
Acute kidney injury appears over hours to days and may follow toxin exposure, shock, infection, or obstruction. Chronic kidney disease develops over months to years and is common in older dogs. Some dogs have acute-on-chronic crises. Only a veterinarian can classify and stage disease using lab trends and clinical findings.
Care themes your vet may discuss
- Fluids (outpatient or hospital) to support hydration and kidney perfusion when appropriate
- Diet changes designed for kidney support (veterinary diets, not random “low protein” internet plans)
- Medications for nausea, blood pressure, phosphorus balance, or anemia when indicated
- Treating infections or removing toxins/obstructions when those are the drivers
- Recheck schedules for creatinine, SDMA, electrolytes, urine, and blood pressure
We do not list drug doses here. Plans are individualized.
What you can do at home (supportive, not DIY treatment)
- Always provide fresh water unless your veterinarian has given specific fluid restrictions (uncommon in most outpatient kidney cases).
- Give prescribed medications on schedule.
- Note appetite, vomiting, and urine output daily during flares.
- Prevent access to antifreeze, raisins/grapes, NSAIDs, and other known nephrotoxins.
FAQ
Is kidney disease the same as kidney failure?
People often use the words interchangeably. Clinicians may reserve “failure” for more advanced loss of function. See our kidney failure page for crisis-focused signs.
Can kidney disease be cured?
Acute injury sometimes improves if the cause is fixed quickly. Chronic disease is usually managed rather than cured.
Talk with a vet
Questions about lab results or home monitoring: dialavet.com. No urine, persistent vomiting, or collapse: emergency clinic now.
References
- IRIS (International Renal Interest Society). CKD staging educational themes.
- Merck Veterinary Manual. Renal disease overview.
- AVMA. Pet toxin awareness resources.
Disclaimer: Educational only. Not a diagnosis or treatment plan. Kidney disease requires veterinary assessment.
