Lifestyle

6 Signs of Kidney Disease Most People Miss

By Curtis Jones · October 17, 2026

Chronic kidney disease often stays quiet for years. The Centers for Disease Control and Prevention estimates that more than 1 in 7 American adults has CKD, and as many as 9 in 10 don’t know they have it. The National Kidney Foundation makes the same point: most people with kidney disease don’t know they have it.

That is why symptoms alone are a weak filter. NIDDK says early kidney disease usually doesn’t have any symptoms, and that the real check is a blood test for how well your kidneys filter (GFR, based on creatinine) plus a urine test for albumin. Still, a few everyday clues show up often enough that they are worth mentioning to your doctor, especially if you have diabetes, high blood pressure, heart disease, or a family history of kidney failure.

Foamy urine that keeps coming back. The National Kidney Foundation says lots of bubbles or foam in your urine, especially if it happens often, may be a sign of protein leaking into the urine. Occasional bubbles can be normal. Persistent foam that looks like poured soda is different. Ask for a urine albumin-to-creatinine ratio, or uACR. NIDDK notes that more than 30 mg/g may be a sign of kidney disease.

Swelling in your ankles, feet, or around your eyes. When kidneys hold onto extra fluid and salt, Cleveland Clinic lists swelling of your hands, feet and ankles among later symptoms. NKF also ties puffy eyes in the morning to protein loss in the urine. Socks that leave deep marks or shoes that feel tight by evening deserve a check, because heart and liver problems can cause the same thing.

Tiredness that sleep does not fix. NKF explains that damaged kidneys can let waste build up and lower red blood cell levels, which leads to anemia and leaves you feeling weak, tired, short of breath, or foggy. Cleveland Clinic also lists tiredness and low energy among CKD symptoms. Fatigue has dozens of causes. That is exactly why a simple blood and urine panel is useful.

Peeing more often, especially at night. Both NKF and Cleveland Clinic list a need to pee more often as a common change. NKF notes it can look a lot like a urinary infection, diabetes, or an enlarged prostate, so the symptom itself does not prove kidney disease. A urine test can help sort it out.

Dry, itchy skin. Healthy kidneys help balance minerals such as calcium and phosphorus. When that balance slips, NKF says dry, rough, or itchy skin can follow. Cleveland Clinic lists dry and itchy skin among CKD symptoms as well. Lotion helps comfort. It does not replace a blood test if the itch is new and stubborn.

Food that tastes metallic, or little appetite. NKF says waste buildup can make food taste metallic or bitter, and that some people feel full after a few bites or lose interest in eating. Cleveland Clinic also lists loss of appetite. If those changes stick around, ask whether your GFR and urine albumin have been checked recently.

None of these signs proves you have CKD. Several at once, or any of them paired with diabetes or high blood pressure, are a reason to ask for the two tests NIDDK and CDC both recommend. Early treatment can slow damage. Waiting until symptoms are loud often means waiting too long.

This article is for general information and is not medical advice. If you notice these symptoms or have risk factors for kidney disease, talk with your doctor about blood and urine testing.