The kidneys are vital organs responsible for filtering waste and excess fluids from the body. As we age, the kidneys undergo changes that can affect their function.

Understanding these changes can help us take steps to maintain kidney health and prevent kidney disease.

Normal Aging Changes in Kidneys

As we age, our kidneys undergo several changes that can reduce their function. These changes include:.

Decreased blood flow to the kidneys
Loss of nephrons (the filtering units of the kidneys)
Thickening of blood vessels in the kidneys
Decreased ability to filter waste and excess fluids
Decreased ability to regulate electrolytes

Chronic Kidney Disease (CKD)

Chronic kidney disease (CKD) is a condition in which the kidneys gradually lose function over time.

CKD can develop as a result of normal aging changes in the kidneys, or it can be caused by other factors such as high blood pressure, diabetes, or a family history of kidney disease. Symptoms of CKD may not appear until the condition is advanced. These symptoms can include:.

Fatigue
Difficulty concentrating
Swelling in the legs and ankles
Increased urination at night
Blood in the urine

Preventing Kidney Disease

There are several steps you can take to maintain kidney health and prevent kidney disease:.

Maintain a healthy weight
Exercise regularly
Control high blood pressure and diabetes
Avoid smoking and limit alcohol consumption
Stay hydrated
Avoid excessive use of over-the-counter pain medications

Kidney Function Tests

If you are at risk for kidney disease or have symptoms of kidney disease, your doctor may recommend kidney function tests. These tests can include:.

Blood tests to measure creatinine and glomerular filtration rate (GFR)
Urine tests to check for protein and blood in the urine
Imaging tests such as ultrasound, CT scan, or MRI
Kidney biopsy (in some cases)

Kidney Disease Treatment

Treatment for kidney disease depends on the cause and severity of the condition. Treatment options may include:.

Medications to control blood pressure and/or diabetes
Dietary changes to reduce protein, salt, and potassium in the diet
Fluid and electrolyte management
Dialysis or kidney transplant (in severe cases)

Conclusion

As we age, our kidneys undergo changes that can affect their function. Understanding these changes and taking steps to maintain kidney health can help prevent or delay the onset of kidney disease.

If you are at risk for kidney disease or have symptoms of kidney disease, talk to your doctor about kidney function tests and appropriate treatment options.