Pediatric Urology Clinic – Understanding How to Protect Your Child’s Kidney Health

What Is a Solitary Kidney?

A solitary kidney means your child has one functioning kidney instead of two. Most children with a solitary kidney grow and live completely normal, healthy lives. However, there are a few important precautions to keep the kidney safe in the long term.

Key Health Priorities

These are the MOST important things to protect kidney function.

1. Avoid or Limit NSAIDs (Non-Steroidal Anti-Inflammatory Drugs)

Examples: Ibuprofen (Advil/Motrin), Naproxen (Aleve)

• These medications can reduce blood flow to the kidney and increase risk of injury.
• Preferred pain treatment: Acetaminophen (Tylenol).
• Only use NSAIDs if approved by your child’s provider.

Children with one kidney cannot afford preventable injury from medications.

2. Avoid IV Antibiotics Unless Absolutely Necessary

Certain IV antibiotics (especially aminoglycosides like gentamicin) can be nephrotoxic (hard on the kidney).

• If your child is ever hospitalized, inform all providers that your child has one kidney.
• Ask if safer oral options are available.

3. Blood Pressure Must Stay Normal

High blood pressure can silently damage the kidney over time. Your child should have:

• Annual blood pressure checks
• Monitoring if symptoms such as headaches, fatigue, or vision changes occur
• Early evaluation if BP becomes elevated

Goal: Detect and treat blood pressure issues early before they affect the kidney.

4. Limit Salt (Sodium) Intake

Too much sodium can raise blood pressure and strain the kidney.

Tips:

• Avoid added salt at the table
• Minimize processed foods (chips, ramen, fast food, frozen meals)
• Choose low-sodium versions when possible
• Encourage water instead of sports drinks and sodas

5. Safety in Sports & High-Impact Activities

Children with a solitary kidney can participate in most sports, but some activities carry higher risk.

Contact Sports That Require Extra Protection

Your child must wear a kidney guard/flak jacket for:

• Football
• Horseback riding
• ATVs and motocross/dirt bikes
• High-impact or collision sports (wrestling, hockey, martial arts, rugby)

Sports That Are Generally Safe Without Protection

• Swimming
• Track & field
• Soccer
• Tennis
• Dance, cheer
• Gymnastics
• Basketball
  (Soccer and basketball are not considered high-impact for kidney trauma.)
  

A direct blow to the lower back can injure the kidney. Protective gear significantly reduces trauma risk.

Take-Home Message

A solitary kidney can support a healthy, active, normal life. With a few important precautions—limiting NSAIDs, avoiding kidney-toxic IV antibiotics, maintaining normal blood pressure, limiting salt, and using protective gear during high-impact sports—your child’s kidney can remain strong and healthy for life.