How Do I Know If I Have Kidney Disease?

The signs of kidney disease are easy to miss. Many look like symptoms of common health problems. More severe signs might not show up until your kidneys have started to fail. That’s why only 10% of people with chronic kidney disease know they have it.

Knowing the warning signs can help you get diagnosed and treated early -- and stave off more serious health problems.

What Is Kidney Disease?

Your kidneys -- bean-shaped organs on either side of your spine -- are small, but they have a big job when it comes to your health. They filter extra water and waste from your blood, make urine, and help control your blood pressure. If they are damaged and stop working like they should, you have kidney disease.

Several things increase your chances of getting it:

African-Americans, Asian-Americans, and Native Americans are at greater risk than other groups.

What to Watch For

Kidney disease gets worse over time as waste and fluid build up in your body. Here are the warning signs:

  • Changes in your urine. You might pee more or less than normal. Or you could notice a change in color or that your pee is foamy. This means that protein is seeping out of your kidneys. Blood in the urine is another sign. When your kidneys no longer filter waste like they should, blood cells leak into your urine.
  • Dry and itchy skin. This can happen when your kidneys are no longer able to balance the minerals and nutrients in your blood.
  • Swelling. Your kidneys help even out the amount of sodium (salt) in your body. When they’re not working well, your body hangs on to extra salt. This can cause puffy skin around your ankles and feet. You may also notice it in your hands or around your eyes.
  • Upset stomach . Built-up waste in your blood can inflame your stomach, causing nausea and vomiting.
  • Fatigue. Your kidneys produce a hormone that tells your body to make red blood cells that carry oxygen throughout your body. If they’re not working right, this doesn’t get done, and you can have a health problem called anemia. You may feel tired, even after you rest. Your sleep quality may suffer, too.

Continued

Getting a Diagnosis

If you think you’re at risk for kidney disease, you can ask your doctor to test your kidney function. This can be done in two ways -- a urine test or a blood test.

In a urine test, your doctor will look for traces of blood. He’ll also check your pee for a type of protein called albumin. If the result comes back positive, she may want a re-test to confirm. If albumin is found in your pee three times over 3 months, you could have early kidney disease.

In a blood test, doctors look for a waste product called creatinine. When kidneys are damaged, they have a hard time cleaning this from your blood. Once your doctor knows how much creatinine is in your blood, she can use this, along with your age, race, and sex to measure how well your kidneys are working.

Treatment

It’s rare for kidney disease to simply go away. Over time, it’s likely to get worse. Because of that, the sooner you find out that you have it, the better. Early treatment may prevent your kidneys from failing. But there’s no “one-size-fits-all” treatment for this condition. It depends on several things, including what caused your kidney disease.

Your doctor likely will start by taking care of other conditions you have. For instance, you may need to start a daily medication to lower your blood pressure or cholesterol. Symptoms caused by your kidney disease, like anemia or swelling, can also be treated with medicine.

Lifestyle changes can help:

  • Try to work out often and get down to a weight that’s right for you.
  • Eat less protein and salt so you reduce the amount of work your kidneys must do.
  • Watch the amount of alcohol you drink.
  • If you smoke, now’s a good time to quit.
  • Avoid taking over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs). These are hard on your kidneys.

Your goal is to keep your kidneys working for as long as they can. People whose kidneys have failed will need dialysis (a treatment that cleans waste from the blood) or a kidney transplant to live.

WebMD Medical Reference Reviewed by Minesh Khatri, MD on December 18, 2016

Sources

SOURCES:

American Kidney Fund: “Chronic Kidney Disease,” “Protein in Urine.”

National Institute of Diabetes and Digestive Kidney Diseases: “Kidney Disease Basics.”

National Kidney Foundation: “10 Signs You May Have Kidney Disease,” “3 Early Warning Signs of Kidney Disease,” “How Your Kidneys Work?” “Two Simple Tests to Check for Kidney Disease.”

Mayo Clinic: “Chronic Kidney Disease.”

National Health Service (U.K.): “Kidney Disease Self-Assessment,” “Living With Chronic Kidney Disease,” “Treatments for Chronic Kidney Disease.”

UnityPointHealth/LiveWell: “Are Your Kidneys Working? Recognizing and Preventing Chronic Kidney Disease: A Silent Epidemic.”

© 2016 WebMD, LLC. All rights reserved.

Pagination