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</div><div><span>Nephrotic syndrome</span></div></div>
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</noscript></div><div class="main"><div id="ency_summary"><p>Nephrotic syndrome is a group of symptoms and abnormal test results that include <a test="test" href="./003580.htm">protein in the urine</a>, low blood protein levels in the blood, <a test="test" href="./000403.htm">high cholesterol levels</a>, high triglyceride levels, increased blood clot risk, and <a test="test" href="./003103.htm">swelling</a>.</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>Causes</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>Nephrotic syndrome is caused by different disorders that damage the kidneys. This damage leads to the release of too much protein in the urine.</p><p>The most common cause in children is <a test="test" href="./000496.htm">minimal change disease</a>. <a test="test" href="./000472.htm">Membranous glomerulonephritis</a> is the most common cause in adults. In both diseases, the glomeruli in the kidneys are damaged. Glomeruli are the structures that help filter wastes and fluids.</p><img title="Glomerulus and nephron" alt="Glomerulus and nephron" src="//medlineplus.gov/ency/images/ency/fullsize/24353.jpg" class="img-e" itemprop="image"/><p>This condition can also occur due to:</p><ul><li><a test="test" href="./001289.htm">Cancer</a></li><li>Diseases such as <a test="test" href="./001214.htm">diabetes</a>, <a test="test" href="./000435.htm">systemic lupus erythematosus</a>, <a test="test" href="./000583.htm">multiple myeloma</a>, and <a test="test" href="./000533.htm">amyloidosis</a></li><li>Genetic disorders</li><li>Immune disorders</li><li>Infections (such as <a test="test" href="./000639.htm">strep throat</a>, <a test="test" href="./001154.htm">hepatitis</a>, or <a test="test" href="./000591.htm">mononucleosis</a>)</li><li>Use of certain drugs</li></ul><p>It can occur with kidney disorders such as:</p><ul><li>Focal and <a test="test" href="./000478.htm">segmental glomerulosclerosis</a></li><li><a test="test" href="./000484.htm">Glomerulonephritis</a></li><li>Mesangiocapillary glomerulonephritis</li></ul><p>Nephrotic syndrome can affect all age groups. In children, it is most common between ages 2 and 6. This disorder occurs slightly more often in males than females.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Symptoms</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p><a test="test" href="./003103.htm">Swelling</a> (edema) is the most common symptom. It may occur:</p><ul><li>In the face and around the eyes (<a test="test" href="./003105.htm">facial swelling</a>)</li><li>In the arms and legs, especially in the feet and ankles</li><li>In the belly area (<a test="test" href="./003122.htm">swollen abdomen</a>)</li></ul><p>Other symptoms include:</p><ul><li>Skin <a test="test" href="./003220.htm">rash</a> or sores</li><li>Foamy appearance of the urine</li><li><a test="test" href="./003121.htm">Poor appetite</a></li><li><a test="test" href="./003084.htm">Weight gain (unintentional)</a> from fluid retention</li><li><a test="test" href="./003200.htm">Seizures</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Exams and Tests</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>Your health care provider will perform a physical exam. Laboratory tests will be done to see how well the kidneys are working. They include:</p><ul><li><a test="test" href="./003480.htm">Albumin</a> blood test</li><li>Blood chemistry tests, such as <a test="test" href="./003462.htm">basic metabolic panel</a> or <a test="test" href="./003468.htm">comprehensive metabolic panel</a></li><li><a test="test" href="./003474.htm">Blood urea nitrogen</a> (BUN)</li><li><a test="test" href="./003475.htm">Creatinine - blood test</a></li><li><a test="test" href="./003610.htm">Creatinine clearance - urine test</a></li><li><a test="test" href="./003579.htm">Urinalysis</a></li></ul><p>Fats are often also present in the urine. Blood cholesterol and triglyceride levels may be high.</p><p>A <a test="test" href="./003907.htm">kidney biopsy</a> may be needed to find the cause of the disorder.</p><p>Tests to rule out various causes may include the following:</p><ul><li><div><a test="test" href="./003535.htm">Antinuclear antibody</a></div></li><li><a test="test" href="./003555.htm">Cryoglobulins</a></li><li><a test="test" href="./003456.htm">Complement levels</a></li><li><a test="test" href="./003466.htm">Glucose tolerance test</a></li><li>
Hepatitis B antigen</li><li>Hepatitis C antibodies
</li><li><a test="test" href="./003538.htm">HIV test</a></li><li><a test="test" href="./003548.htm">Rheumatoid factor</a></li><li><a test="test" href="./003540.htm">Serum protein electrophoresis</a> (SPEP)</li><li>Syphilis serology</li><li><a test="test" href="./003589.htm">Urine protein electrophoresis</a> (UPEP)</li></ul><p>This disease may also change the results of the following tests:</p><ul><li><div>Vitamin D level</div></li><li><div><a test="test" href="./003488.htm">Serum iron</a></div></li><li><a test="test" href="./003586.htm">Urinary casts</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Treatment</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>The goals of treatment are to relieve symptoms, prevent complications, and delay <a test="test" href="./001065.htm">kidney damage</a>. To control nephrotic syndrome, the disorder that is causing it must be treated. You may need treatment for life.</p><p>Treatments may include any of the following:</p><ul><li>Keeping blood pressure at or below 130/80 mm Hg to delay kidney damage. Angiotensin-converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs) are the medicines most often used. ACE inhibitors and ARBs may also help decrease the amount of protein lost in the urine.</li><li>Corticosteroids and other drugs that suppress or quiet the immune system.</li><li>Treating high cholesterol to reduce the risk for heart and blood vessel problems -- A low-fat, low-cholesterol diet is usually not enough for people with nephrotic syndrome. Medicines to reduce cholesterol and triglycerides (usually statins) may be needed.</li><li>A <a test="test" href="../patientinstructions/000109.htm">low-sodium diet</a> may help with swelling in the hands and legs. Water pills (diuretics) may also help with this problem.</li><li>Low-protein diets may be helpful. Your provider may suggest a moderate-protein diet (1 gram of protein per kilogram of body weight per day).</li><li>Taking <a test="test" href="./002405.htm">vitamin D</a> supplements if nephrotic syndrome is long-term and is not responding to treatment.</li><li>Taking blood thinner drugs to treat or prevent blood clots.</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Outlook (Prognosis)</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>The outcome varies. Some people recover from the condition. Others develop long-term kidney disease and need <a test="test" href="../patientinstructions/000707.htm">dialysis</a> and eventually a <a test="test" href="./003005.htm">kidney transplant</a>.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Possible Complications</h2></div><div class="section-button"><button type="submit" aria-controls="section-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>Health problems that may result from nephrotic syndrome include:</p><ul><li><a test="test" href="./000501.htm">Acute kidney failure</a></li><li><a test="test" href="./000171.htm">Hardening of the arteries</a> and related heart diseases</li><li><a test="test" href="./000471.htm">Chronic kidney disease</a></li><li>Fluid overload, <a test="test" href="./000158.htm">heart failure</a>, <a test="test" href="./000140.htm">fluid buildup in lungs</a></li><li>Infections, including pneumococcal <a test="test" href="./000145.htm">pneumonia</a></li><li><a test="test" href="./000404.htm">Malnutrition</a></li><li><a test="test" href="./000513.htm">Renal vein thrombosis</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>When to Contact a Medical Professional</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>Contact your provider if:</p><ul><li>You or your child develops symptoms of nephrotic syndrome, including swelling in face, belly, or arms and legs, or skin sores</li><li>You or your child are being treated for nephrotic syndrome, but symptoms don't improve</li><li>New symptoms develop, including <a test="test" href="./003072.htm">cough</a>, decreased urine output, discomfort with urination, <a test="test" href="./003090.htm">fever</a>, severe <a test="test" href="./003024.htm">headache</a></li></ul><p>Go to the emergency room or call the local emergency number (such as 911) if you have <a test="test" href="./003200.htm">seizures</a>.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Prevention</h2></div><div class="section-button"><button type="submit" aria-controls="section-8" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-8"><p>Treating conditions that can cause nephrotic syndrome may help prevent the syndrome.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Nephrosis</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/1101t.jpg" alt="Kidney anatomy" title="Kidney anatomy" class="side-img"/><a href="../imagepages/1101.htm">Kidney anatomy</a></li>
<li><img src="//medlineplus.gov/ency/images/ency/tnails/24353t.jpg" alt="Glomerulus and nephron" title="Glomerulus and nephron" class="side-img"/><a href="../imagepages/19932.htm">Glomerulus and nephron</a></li>
</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>Erkan E. Nephrotic syndrome. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. <em>Nelson Textbook of Pediatrics</em>. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 545.</p><p>Radhakrishnan J, Stokes MB. Glomerular disorders and nephrotic syndromes. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 107.</p><p>Saha MK, Pendergraft WF, Jennette JC, Falk RJ. Primary glomerular disease. In: Yu ASL, Chertow GM, Luyckx VA, Marsden PA, Skorecki K, Taal MW, eds. <em>Brenner and Rector's The Kidney</em>. 11th ed. Philadelphia, PA: Elsevier; 2020:chap 31.</p></div></div></section>
<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 8/28/2023</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<div id="section-version" class="section-body"><p>Updated by: Walead Latif, MD, Nephrologist and Clinical Associate Professor, Rutgers Medical School, Newark, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. </p>
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