10 Signs Your Kidneys May Be Struggling — Symptoms You Shouldn’t Ignore

Your kidneys work quietly in the background every day, filtering waste and excess fluid from your blood, helping control blood pressure, balancing minerals, and supporting the production of red blood cells. Because kidney disease can develop gradually, a person may have few noticeable symptoms during the early stages.

That is why kidney problems are sometimes discovered through routine blood or urine tests rather than through obvious warning signs.

The image highlights skin changes and pain around the back, but kidney problems can affect many different parts of the body. However, no single symptom shown in a social-media image can prove that your kidneys are failing. Many of the symptoms associated with kidney disease can also occur with dehydration, infections, medication effects, diabetes, heart conditions, or other health problems.

Here are some important signs to understand.

1. Changes in Urination

One of the most noticeable potential signs of kidney problems is a change in normal urination.

Depending on the underlying condition, this may include:

• Urinating much more frequently
• Urinating much less than usual
• Waking frequently during the night to urinate
• Difficulty urinating
• Producing unusually large or small amounts of urine

Changes in urination do not automatically indicate kidney disease. Drinking more fluids, caffeine, certain medications, urinary infections, prostate problems, and other conditions can also affect urination.

But persistent or unexplained changes deserve medical attention, especially when they occur with other symptoms.

2. Swelling in the Legs, Ankles, or Feet

Healthy kidneys help remove excess sodium and fluid from the body.

When kidney function becomes significantly impaired, the body may retain additional fluid. This can contribute to swelling, particularly around the ankles, feet, legs, hands, or sometimes the face.

Swelling can have many other causes, including heart disease, liver disease, venous problems, medications, and prolonged sitting or standing.

If swelling is new, persistent, or worsening, a healthcare professional can help determine its cause.

3. Foamy or Bubbly Urine

Occasional bubbles in urine are normal.

However, urine that is consistently very foamy or frothy can sometimes indicate increased amounts of protein in the urine.