St. Luke's Hospital
Located in Chesterfield, MO
Main Number: 314-434-1500
Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
Find a Physician Payment Options Locations & Directions
Follow us on: facebook twitter Mobile Email Page Email Page Print Page Print Page Increase Font Size Decrease Font Size Font Size
Meet the Doctor
Spirit of Women
Community Health Needs Assessment
Home > Health Information

Multimedia Encyclopedia


    Focal segmental glomerulosclerosis

    Segmental glomerulosclerosis; Focal sclerosis with hyalinosis

    Focal segmental glomerulosclerosis is scar tissue that forms in parts of the kidney called glomeruli. The glomeruli serve as filters, helping rid the body of unnecessary or harmful substances. Each kidney has thousands of glomeruli. One glomeruli is called a glomerulus.

    "Focal" means that some of the glomeruli become scarred, while others remain normal. "Segmental" means that only part of an individual glomerulus is damaged.


    The cause of focal segmental glomerulosclerosis is usually unknown.

    The condition affects both children and adults. Men and boys are affected slightly more often than women and girls, and it also occurs more often in African Americans. Focal segmental glomerulosclerosis causes about 20 - 25% of all cases of nephrotic syndrome.

    Known causes include:

    • Heroin use
    • HIV
    • Inherited genetic problems
    • Obesity
    • Reflux nephropathy (a condition in which urine flows backward from the bladder to the kidney)
    • Sickle cell disease


    • Foamy urine (from excess protein in the urine)
    • Poor appetite
    • Swelling, called generalized edema, from fluids held in the body
    • Weight gain

    Exams and Tests

    The health care provider will perform a physical examination. This may detect tissue swelling and high blood pressure. Signs of kidney (renal) failure and excess fluid may develop as the condition gets worse.

    Tests may include:

    • Kidney biopsy
    • Kidney function tests (blood and urine)
    • Urinalysis
    • Urine microscopy
    • Urine protein


    Some patients will receive high doses of corticosteroids or a drug called cyclosporine to suppress their immune system.

    The goal of treatment is to control the symptoms of nephrotic syndrome and prevent chronic kidney failure.

    See also:

    • Chronic kidney failure
    • Nephrotic syndrome

    In general, treatments may include:

    • Antibiotics to control infections
    • Anti-inflammatory medicines to reduce the immune response
    • Dialysis
    • Fluid restriction
    • Kidney transplant
    • Low-fat diet
    • Low- or moderate-protein diet (1 gram of protein per kilogram of body weight per day)
    • Medicines to treat high blood pressure, high blood cholesterol, and high triglyceride levels
    • Salt-reduced diet
    • Vitamin D supplements

    See also: Kidney disease - diet

    Outlook (Prognosis)

    More than half of those with focal or segmental glomerulosclerosis develop chronic kidney failure within 10 years.

    Possible Complications

    • Chronic kidney failure
    • End-stage kidney disease
    • Infection
    • Malnutrition
    • Nephrotic syndrome

    When to Contact a Medical Professional

    You should call your doctor if you develop symptoms of this condition, especially if there is fever, pain with urination, or decreased urine output.


    No prevention is known.


    Appel GB. Glomerular disorders and nephrotic syndromes. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 122.

    Nachman PH, Jennette JC, Falk, RJ. Primary glomerular disease. In: Brenner BM, ed. Brenner and Rector's The Kidney. 8th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 30.


    • Male urinary system


      • Male urinary system


      Tests for Focal segmental glomerulosclerosis

        Review Date: 6/8/2011

        Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Herbert Y Lin, MD, PhD, Nephrologist, Massachusetts General Hospital; Associate Professor of Medicine, Harvard Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

        The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

        A.D.A.M. content is best viewed in IE9 or above, Fire Fox and chrome browser.

        Back  |  Top
        About Us
        Contact Us
        Locations & Directions
        Quality Reports
        Annual Reports
        Honors & Awards
        Community Health Needs

        Brain & Spine
        Sleep Medicine
        Urgent Care
        Women's Services
        All Services
        Patients & Visitors
        Locations & Directions
        Find a Physician
        Tour St. Luke's
        Patient & Visitor Information
        Contact Us
        Payment Options
        Financial Assistance
        Send a Card
        Mammogram Appointments
        Health Tools
        My Personal Health
        Spirit of Women
        Health Information & Tools
        Clinical Trials
        Employer Programs -
        Passport to Wellness

        Classes & Events
        Classes & Events
        Spirit of Women
        Donate & Volunteer
        Giving Opportunities
        Physicians & Employees
        For Physicians
        Remote Access
        Medical Residency Information
        Pharmacy Residency Information
        Physician CPOE Training
        St. Luke's Hospital - 232 South Woods Mill Road - Chesterfield, MO 63017 Main Number: 314-434-1500 Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
        Copyright © St. Luke's Hospital Website Terms and Conditions  |  Privacy Policy  |  Notice of Privacy Practices PDF  |  Patient Rights PDF Sitemap St. Luke's Mobile