How lupus affects the kidneys?
- Blood in the urine (hematuria): This is a sign that the glomeruli are leaking blood into the urine.
- Protein in the urine (proteinuria): This is a sign that the glomeruli are allowing protein to leak into the urine. Protein is normally too large to pass through the glomeruli.
- High blood pressure: This is a common complication of lupus nephritis.
- Swelling (edema): This is caused by the kidneys retaining too much fluid.
- Kidney failure: This is the most serious complication of lupus nephritis and can be life-threatening.
- Decreased urine output: This is a sign that the kidneys are not filtering waste products from the blood properly.
Lupus nephritis can also cause a number of other problems, including:
- Pain in the side or abdomen: This is caused by inflammation of the kidneys.
- Fever: This is a sign that the body is fighting an infection.
- Fatigue: This is a common symptom of lupus.
- Skin rash: This is a common symptom of lupus.
If you have lupus, it is important to see your doctor regularly to be screened for kidney problems. Early diagnosis and treatment of lupus nephritis can help to prevent kidney damage and kidney failure.