5 Stages of Chronic Kidney Disease: Everything You Need to Know

Chronic kidney disease (CKD) is a silent but serious condition that gradually reduces the kidneys' ability to filter waste and excess fluids from the blood. Because symptoms often don’t appear until the disease has significantly progressed, many people are unaware they have it until complications arise. CKD is closely linked to diabetes, high blood pressure, and heart disease, making it a widespread health concern that affects millions. If left untreated, it can lead to kidney failure, requiring dialysis or a transplant to sustain life. Understanding CKD is the first step in managing it effectively, which is why we’ve expanded our guide to cover everything you need to know—from early warning signs and risk factors to diagnosis, treatment options, and lifestyle changes that can slow its progression. Whether you’ve been diagnosed, are at risk, or want to learn more, this comprehensive guide will equip you with the knowledge to face CKD with confidence and take proactive steps toward better kidney health.

Stage One: The Silent Warning Sign

At stage one of chronic kidney disease (CKD), the kidneys are still functioning almost normally, and most patients experience no noticeable symptoms. However, beneath the surface, small but significant changes may already be happening. A patient is classified as having stage one CKD if their estimated glomerular filtration rate (eGFR) is 90 or higher, but there are signs of kidney damage, such as protein in the urine (proteinuria) or structural abnormalities detected through imaging tests. Since the disease is in its earliest phase, this is the best time to take action and slow or even prevent further progression. Patients diagnosed at this stage should have an in-depth discussion with their doctor about lifestyle changes that protect kidney function—including maintaining a healthy weight, managing blood pressure, and keeping blood sugar levels in check (especially for those with diabetes). While no drastic medical interventions are usually required at this point, early consultation with a nephrologist (kidney specialist) can provide valuable guidance on long-term kidney care. With the right approach, many patients can keep their kidneys functioning well for years, if not decades.