Early Signs of Kidney Disease & How to Protect Your Kidneys (Evidence Based)


Early Signs and Symptoms of Kidney Disease

One of the major challenges with kidney disease is that it often develops silently. Many people don’t notice symptoms until significant damage has already occurred. (12)

In its early stages, kidney disease may cause general, nonspecific symptoms that are easy to overlook or confuse with other conditions. Moreover, kidneys can adapt remarkably well to damage, compensating for lost function until it becomes severe.

According to the Mayo Clinic, some of the most common signs of kidney disease include: (13)

  • Persistent fatigue or low energy

  • Changes in urination patterns — such as blood in the urine, foamy urine, or decreased frequency

  • Trouble sleeping or restlessness

  • Nausea, vomiting, or loss of appetite

  • Digestive irregularities such as bloating or constipation

  • Metallic taste in the mouth or bad breath

  • Difficulty concentrating or mental fog

  • Hiccups, muscle cramps, or spasms

  • Swelling in the feet, ankles, or around the eyes

  • Dull pain or pressure in the lower back (where the kidneys are located)

  • Fluctuating blood pressure or shortness of breath

  • Persistent itching or skin rashes

If you experience several of these symptoms, it’s vital to speak with a healthcare professional. Early detection is the key to preventing irreversible kidney damage. Once function is lost, it cannot be fully restored, and advanced CKD may require dialysis or transplantation.

Remember — these symptoms can overlap with other illnesses, so it’s always better to investigate early rather than assume it’s nothing serious.