What is the First Stage of Kidney Damage?
The first stage of kidney damage, known as Stage 1 Chronic Kidney Disease (CKD), is characterized by mild kidney damage despite the kidneys still functioning well. While your estimated glomerular filtration rate (eGFR) remains normal (90 or higher), indicating good kidney function, the presence of protein in your urine (proteinuria) signals damage. This protein leakage is a key indicator of early kidney injury. Many individuals in Stage 1 CKD experience no symptoms.
- Mild Damage: Kidney function is largely unaffected. The eGFR, a measure of how well your kidneys filter waste, remains within the normal range.
- Proteinuria: The presence of protein in the urine, a sign of damage to the glomeruli (filtering units in the kidneys).
- Asymptomatic: Often, people with Stage 1 CKD don't experience any noticeable symptoms.
The early stages of chronic kidney disease may not present with symptoms, as the body compensates for the mild damage. Diagnosis often occurs incidentally during routine blood or urine tests conducted for other reasons.
Importance of Early Detection
Early detection of kidney damage, even in Stage 1, is crucial. While the kidneys are still working effectively, the underlying damage needs to be addressed to prevent further progression to more severe stages of CKD. Management focuses on identifying and managing the underlying cause of the damage.
