What Are The Stages Of Chronic Kidney Disease?

Caring for someone with chronic kidney disease (CKD) can feel overwhelming. When you first hear about “stages,” you probably wonder what this means for your family and how to provide the best care.

Chronic kidney disease has 5 stages based on kidney function:

• Stage 1 (90+)
• Stage 2 (60-89)
• Stage 3 (30-59)
• Stage 4 (15-29)
• Stage 5 (<15) 

Understanding these stages helps you know what to expect, provide better care, and communicate effectively with medical teams. In this guide, we’ll explain each stage, what happens at every level, and how you can help the person you’re caring for. 

If you want to learn more about caring for someone with CKD, check if you have free access to Trualta. 

Understanding Chronic Kidney Disease

Chronic kidney disease happens when the kidneys slowly lose their ability to filter waste and extra fluid from the blood. This damage usually happens over many years, often without obvious symptoms at first.

Why are kidneys so important?

• They filter waste and toxins from your blood
• They control fluid balance in your body
• They help regulate blood pressure
• They make hormones that help create red blood cells
• They keep bones strong by balancing minerals

When kidneys don’t work well, waste and fluid build up in the body. This can affect the heart, bones, blood pressure, and overall health.

What causes CKD?

• Diabetes is the leading cause. Over time, high blood sugar damages tiny blood vessels in the kidneys, and high blood pressure puts extra strain on the filtering system. 
• Family history also plays a role, as kidney problems can run in families. 
• Other causes include autoimmune diseases like lupus, kidney infections, kidney stones, enlarged prostate, and certain long-term medications.

How Doctors Determine CKD Stages

Understanding CKD stages helps you know what noticeable symptoms to watch for, understand which treatment options might be needed, plan for future care needs, communicate better with healthcare teams, and make informed care decisions.

Doctors use several tests to determine kidney disease stages, with the eGFR being most important.

The eGFR Test

The main test is called eGFR (estimated glomerular filtration rate). This test measures how well the kidneys filter blood.

How eGFR works:

• It’s calculated from a blood test that checks a waste product called creatinine
• Doctors also consider age, sex, race, and body size
• Normal eGFR is 90 or higher
• Lower numbers mean the kidneys aren’t filtering as well

Other Important Tests

Healthcare providers also check kidney health through:

• Urine tests for protein, blood, or other signs of kidney damage
• Blood pressure monitoring
• Blood tests to check for waste products, minerals, and other markers
• Imaging tests like ultrasounds or CT scans to see the kidney size and shape

The 5 Stages of Chronic Kidney Disease

As the stage number increases, kidney function decreases. Here’s what each stage means and how to help as a caregiver.

Stage 1 Kidney Disease: Kidney Damage With Normal Function

eGFR: 90 or higher

What’s happening: The kidneys show signs of damage (usually protein in the urine) but still filter blood almost normally.

Symptoms: Usually none. Most people feel completely normal.

Caregiver tips for Stage 1: 

Focus on prevention by:

• Helping your family member manage diabetes with blood sugar monitoring
• Supporting blood pressure control through medication and lifestyle changes
• Encouraging heart-healthy eating with less salt and processed foods
• Promoting regular, gentle exercise as approved by a healthcare professional
• Keep up with all routine doctor visits and lab tests.

What to watch for: 

• Changes in urination (frequency, color, foaming)
• Swelling in hands, feet, or face
• Unexplained fatigue

Important: Even though symptoms are minimal, this is the best time to slow disease progression.

Stage 2 Kidney Disease: Mild Loss Of Kidney Function

eGFR: 60–89

What’s happening: Mild decline in kidney filtering ability, but kidneys still work fairly well.

Symptoms: Often none, but blood and urine tests show kidney changes.

Caregiver tips for Stage 2:

• Continue protective measures by helping maintain strict blood pressure control
• Supporting diabetes management if applicable
• Assisting with medication organization and reminders
• Encouraging a kidney-friendly diet with balanced protein
• Help track and limit sodium intake

Dietary support: 

• Learn about foods that are kidney-friendly
• Help plan meals that are lower in salt
• Encourage plenty of fruits and vegetables (unless restricted)
• Support healthy weight maintenance

Medication safety: 

• Keep a current list of all medications, including over-the-counter ones
• Check with doctors before giving new medications
• Avoid NSAIDs (like ibuprofen) unless approved by the kidney doctor

Stage 3 Kidney Disease: Moderate Loss of Kidney Function

eGFR: 30–59 (divided into 3A: 45–59 and 3B: 30–44)

What’s happening: Waste products start to build up in the blood. This is when many people first learn they have CKD.

Symptoms: 

• Fatigue
• Swelling in feet and ankles
• Changes in urination
• Sleep problems
• Muscle cramps

Caregiver tips for Stage 3:

• Symptom management: Monitor for new or worsening swelling, track changes in sleep patterns or energy levels, watch for changes in appetite or nausea, and help manage muscle cramps with gentle stretching.
• Medical care coordination: Ask if a referral to a kidney specialist (nephrologist) is needed, help organize and attend medical appointments, keep detailed records of symptoms and medications, and assist with lab test scheduling and follow-up.
• Emotional support: This is often when people first “feel sick” from CKD. Listen without trying to fix everything, help them stay connected with friends and activities they enjoy, and consider counseling or support groups.
• Diet modifications: Work with a dietitian if possible, help reduce phosphorus-rich foods if recommended, support protein modifications as advised, and monitor fluid intake if restrictions are given.

Consider This: Support groups aren’t just for the patient. You can join caregiver support groups and connect with others who understand what you’re going through.

Stage 4 Kidney Disease: Severe Loss Of Kidney Function

eGFR: 15–29

What’s happening: Kidneys are close to failing. Your care recipient will have noticeable symptoms that are bothersome.

Symptoms: 

• Swelling
• Nausea
• Loss of appetite
• Trouble concentrating
• Tiredness
• Itching
• Metallic taste

Caregiver tips for Stage 4:

• Treatment planning: Begin learning about dialysis options (hemodialysis, peritoneal dialysis), discuss kidney transplant possibilities if appropriate, help research treatment centers and options, and support decision-making about future care.
• Daily care assistance: Help with meal planning and preparation, assist with medication management, monitor weight daily for sudden changes, and help with transportation to frequent medical appointments.
• Symptom relief: Use unscented lotions for itchy skin, offer small, frequent meals if appetite is poor, help maintain oral hygiene for metallic taste, and support rest periods throughout the day.
• Preparation for next stage: Help organize important documents, discuss wishes and preferences for care, consider advance directives, and connect with social workers or case managers.

Stage 5 Kidney Disease: Kidney Failure (End Stage Kidney Disease)

eGFR: Less than 15

What’s happening: Kidneys can no longer keep the body balanced without treatment.

Symptoms: 

• Severe fatigue
• Fluid overload
• Shortness of breath
• Nausea
• Confusion
• Decreased urination

Caregiver tips for Stage 5:

• Treatment support: Help coordinate dialysis treatments or transplant care, assist with transportation to treatment centers, learn about dialysis procedures if they choose treatment, and support comfort-focused care if that’s the chosen path.
• Intensive daily care: Monitor fluid intake carefully, help with strict dietary restrictions, watch for signs of fluid overload (rapid weight gain, difficulty breathing), and assist with personal care as energy decreases.
• Emergency awareness: Know when to seek immediate medical help, keep emergency contact numbers handy, understand signs of dangerous fluid buildup, and be prepared for rapid changes in condition.

Important: Self-care is important for caregivers. Seek support from other caregivers or professionalsTake breaks when possibleConsider respite care servicesMaintain your own health and well-being

Frequently Asked Questions About CKD Stages

Q: Can chronic kidney disease be reversed? 

A: Most kidney damage is permanent, but early detection and good management can slow or stop further damage.

Q: How quickly does CKD progress through the stages?

A: It varies greatly. Some people stay in the early stages for years, while others progress faster. Good management can significantly slow progression.

Q: Is Stage 3 CKD serious? 

A: Yes, it indicates moderate kidney damage and requires careful monitoring, but many people live well for years with proper care.

Q: What stage is most common at diagnosis? 

A: Many people are diagnosed at Stage 3, often during routine blood tests or when symptoms first appear.

Q: Do all people with CKD need dialysis eventually? 

A: No, many people with early-stage CKD don’t progress to kidney failure, especially with good management and disease control.

Q: Can you live normally with CKD? 

A: Many people live full, active lives with CKD, especially in earlier stages with proper care and lifestyle modifications.

Symptoms That Can Appear at Any Stage

While symptoms typically worsen as CKD progresses, some can appear at any stage.

Physical symptoms:

• Swelling (edema) in legs, ankles, feet, or around the eyes
• Fatigue or weakness that doesn’t improve with rest
• Changes in urination (more or less frequent, foamy, darker color)
• Shortness of breath, especially when lying down
• Muscle cramps, particularly at night
• Trouble sleeping or restless legs

Other symptoms:

• Nausea or vomiting
• Loss of appetite
• Metallic taste in the mouth
• Difficulty concentrating
• Feeling cold all the time
• Itchy, dry skin

Keep a symptom diary to share with a healthcare professional. Small changes can mean treatment options need adjusting.

Managing CKD at Every Stage: A Caregiver’s Action Plan

While CKD usually can’t be cured, you can help slow disease progression and manage symptoms.

1. Medical Care Coordination

• Keep track of all medical appointments
• Organize medications and ensure they’re taken correctly
• Monitor and record vital signs if requested
• Keep copies of lab results and test reports
• Communicate changes in symptoms to the healthcare team

2. Lifestyle Support

• Help maintain a kidney-friendly diet
• Encourage appropriate physical activity
• Support stress management and mental health
• Assist with smoking cessation if needed
• Promote adequate sleep and rest

3. Medication Management

• Organize pills in weekly containers
• Set reminders for medication times
• Check for drug interactions
• Avoid medications that can harm kidneys
• Keep emergency medications readily available

4. Emotional & Social Support

• Listen without judgment
• Help maintain social connections
• Encourage participation in enjoyable activities
• Consider counseling or support groups
• Address fears and concerns openly

Prevention & Slowing Of CKD Progression

Even after diagnosis, the right steps can slow CKD progression.

Blood Pressure Control: 

• Take medications as prescribed
• Monitor blood pressure at home
• Reduce sodium intake
• Maintain a healthy weight
• Manage stress

Blood Sugar Management (for diabetes): 

• Monitor blood glucose regularly
• Follow prescribed diabetes medications
• Support carbohydrate counting
• Encourage regular exercise
• Keep emergency supplies available

Living For Heart Health: 

• Encourage regular physical activity
• Support smoking cessation
• Help manage cholesterol levels
• Promote stress reduction techniques
• Maintain social connections

Kidney Protection: 

• Avoid NSAIDs unless approved by doctors
• Stay hydrated (follow any fluid restrictions)
• Prevent infections, especially urinary tract infections
• Avoid contrast dyes when possible
• Be cautious with herbal supplements

When To Seek Immediate Medical Help

Call healthcare providers right away if you notice:

Emergency symptoms:

• Sudden, severe swelling in face, hands, or feet
• Rapid weight gain (more than 2-3 pounds in one day)
• Severe shortness of breath or chest pain
• Confusion or sudden changes in alertness
• Severe nausea or vomiting that won’t stop
• Little to no urination for more than 8 hours

Other concerning changes:

• Blood in urine
• High fever
• Severe muscle weakness
• Irregular heartbeat
• Severe headaches

Key Takeaways

Understanding the stages of chronic kidney disease empowers you to provide better care and support for the person you’re caring for. Each stage brings different challenges, but with knowledge and preparation, you can help them maintain the best possible quality of life.

Remember these key points:

• Early stages offer the best opportunities to slow progression
• Each person’s experience with CKD is unique
• Good management can keep people in the early stages for years
• Your support makes a significant difference in outcomes
• Taking care of yourself is essential for long-term caregiving

Your role as a caregiver is vital, but don’t forget your own well-being. Use respite care services, join caregiver support groups, and maintain your own health. When you take care of yourself, you’re better able to care for your care recipient.

The journey with chronic kidney disease can be challenging, but with understanding, preparation, and support, families can navigate it successfully. Stay informed, stay connected with healthcare teams, and remember you’re not alone in this journey.

If you’re ready for more information about caregiving skills and resources, check if you have free access to Trualta. 

References

1. Cleveland Clinic. (2023). Chronic kidney disease (CKD). 
2. National Kidney Foundation. (2023). Chronic kidney disease (CKD). 
3. National Kidney Foundation. (n.d.). Stages of chronic kidney disease (CKD). 
4. American Kidney Fund. (2025). Stages of kidney disease (CKD). 
5. Vaidya, S. R., & Aeddula, N. R. (2024). Chronic kidney disease. In StatPearls [Internet]. StatPearls Publishing.