Kidney disease refers to a condition where the kidneys, which are vital organs that filter waste and excess fluids from the blood, become damaged or unable to function properly. This can lead to a buildup of harmful substances in the body, affecting overall health. Common causes include high blood pressure, diabetes, and certain genetic disorders. Symptoms of kidney disease may include fatigue, swelling in the legs or ankles, and changes in urination. Early detection is crucial, as treatment options like medication or dialysis can help manage the condition. Regular check-ups with a healthcare provider can help monitor kidney health and prevent complications.