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Definition
Glomerulonephritis is a type of kidney disease caused by inflammation of the internal kidney structures (glomeruli), which help filter waste and fluids from the blood.
Causes, incidence, and risk factors
Glomerulonephritis may be caused by specific problems with the body's immune system, but the precise cause of some cases is unknown. Damage to the glomeruli causes blood and protein to be lost in the urine.
The condition may develop after survival of the acute phase of rapidly progressive glomerulonephritis. In about a quarter of people with chronic glomerulonephritis there is no prior history of kidney disease and the disorder first appears as chronic renal failure.
Specific disorders that are associated with glomerulonephritis include:
- Focal segmental glomerulosclerosis
- Goodpasture syndrome
- IgA nephropathy
- Lupus nephritis
- Membranoproliferative GN I
- Membranoproliferative GN II
- Post-streptococcal GN
- Rapidly progressive glomerulonephritis
Symptoms
- Blood in the urine (dark, rust-colored, or brown urine)
- Foamy urine
Chronic renal failure symptoms that may gradually develop include the following:
- Unintentional weight loss
- Nausea, vomiting
- General ill feeling (malaise)
- Fatigue
- Headache
- Frequent hiccups
- Generalized itching
- Decreased urine output
- Need to urinate at night
- Easy bruising or bleeding
- Decreased alertness
- Muscle twitching
- Muscle cramps
- Seizures
- Increased skin pigmentation (hyperpigmentation) -- skin may appear yellow or brown
- Decreased sensation in the hands, feet, or other areas
Additional symptoms that may be associated with this disease:
Reviewer Info: Charles Silberberg, DO, Private Practice specializing in Nephrology, Affiliated with New York Medical College, Division of Nephrology, Valhalla, NY. Review provided by VeriMed Healthcare Network., 08/14/2007