10 Warning Signs Your Kidneys May Be Struggling — Symptoms You Should Never Ignore

6. Puffiness Around the Eyes

Excess protein leaking into the urine may be an early sign of kidney damage. One visible symptom can be persistent puffiness around the eyes, particularly in the morning.

This occurs because the body is losing important proteins that normally help regulate fluid balance.

7. Difficulty Sleeping

Research suggests that chronic kidney disease is associated with sleep disturbances. Toxin buildup in the blood can contribute to poor sleep quality, insomnia, or restless nights.

People with kidney disease may also be more likely to experience sleep apnea.