Recognizing a Nephrotic Syndrome Relapse
A guide for families on the early warning signs, home monitoring, and what to do when protein returns to the urine.
← Back to Nephrotic Syndrome overviewWhat is a relapse
Remission means protein is absent from urine (trace or nil on dipstick). A relapse is when protein returns — usually defined as 2+ or higher on dipstick for three consecutive mornings, or a single large reading. A child may be relapsing before swelling appears.
How common
Around 60–70% of children with nephrotic syndrome relapse at least once. Some relapse frequently (4 or more times per year). The pattern often improves with age — many children relapse less as they get older.
Early warning signs
Puffy eyes on waking (parents often notice this first), swelling in feet or ankles, rapid weight gain over 1–3 days, foamy or frothy urine, and lower energy. Protein levels may be rising before visible swelling appears.
Home monitoring
Test a first-morning urine sample daily — especially during colds or viral illnesses, which commonly trigger relapses. Record the result (nil/trace/1+/2+/3+/4+) and your child's weight at the same time each morning. Share this log at every clinic visit.
When to contact your team
Call your nephrologist if urine shows 1+ protein on three consecutive days. Call the same day for 3+ or 4+. Go to emergency care for difficulty breathing, severe abdominal swelling, signs of serious infection, chest pain, or sudden leg pain or swelling.
What happens next
Most relapses are treated with a course of steroids — often the same treatment used initially. Your team may have provided a written action plan. Children with frequent relapses may be on steroid-sparing medications between episodes to reduce recurrence.
Frequently asked questions
What exactly counts as a nephrotic syndrome relapse?
Most care teams define a relapse as urine showing 2+ or higher protein on dipstick on three consecutive morning samples, after a period of remission. A single elevated reading during illness warrants monitoring but may not be a true relapse — always follow your nephrologist's specific action plan rather than a general rule.
My child's urine shows trace or 1+ protein — is that a relapse?
Trace protein can fluctuate normally. 1+ protein on three consecutive days is when most teams advise calling your nephrologist. Track the readings carefully and don't wait — early contact lets your team decide whether to act or watch more closely.
How do I test urine at home with a dipstick?
Collect a mid-stream morning urine sample in a clean container. Dip the strip for 1–2 seconds, lay it flat, and read it at 60 seconds in natural light against the color chart on the bottle. Record the date and result. Your care team will provide the strips and show you how at the start of treatment.
What should I do if I think my child is relapsing?
Contact your nephrologist. Do not restart steroids or change medications without guidance — some teams provide a written action plan with specific instructions for when and how to restart. For severe swelling, breathing difficulty, or signs of serious infection, go to emergency care immediately.
Will my child need to go to hospital for every relapse?
Not always. Many relapses are managed at home with oral steroids as outpatients. Hospital admission is more likely for severe swelling, difficulty breathing, suspected infection, very young children, or when the clinical picture is unclear. Your team will advise based on your child's individual situation.
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