Quick read
Key points
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Glomerulonephritis is inflammation of the tiny filtering units in the kidneys (glomeruli), which can affect the kidneys' ability to filter waste and excess fluid from the blood. It can be caused by infections, autoimmune conditions, or sometimes occurs without a clearly identified cause, and can be acute (sudden) or chronic (long-term).
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Topic-specific prevention and risk reduction will be added during the article-specific evidence audit.
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You notice blood in your urine or unusual swelling, particularly around the eyes or in the legs
01 · Know
What is Glomerulonephritis?
Glomerulonephritis is inflammation of the tiny filtering units in the kidneys (glomeruli), which can affect the kidneys' ability to filter waste and excess fluid from the blood. It can be caused by infections, autoimmune conditions, or sometimes occurs without a clearly identified cause, and can be acute (sudden) or chronic (long-term).
Symptoms can include blood or protein in the urine, swelling (particularly in the legs and around the eyes), high blood pressure, and reduced kidney function. Treatment depends on the underlying cause and severity, ranging from monitoring and blood pressure control to specific medications that calm the immune system's activity.
02 · Understand
Clinical context
It's often first detected through routine urine testing
Glomerulonephritis is sometimes picked up incidentally through a routine urine test showing blood or protein, even before other symptoms like swelling become noticeable.
03 · Act
When to Seek Care
- 1You notice blood in your urine or unusual swelling, particularly around the eyes or in the legs
- 2You have high blood pressure alongside other symptoms suggesting kidney involvement
- 3You've been diagnosed and have questions about your specific treatment plan
- 4You have a known autoimmune condition and develop new kidney-related symptoms
04 · Prevent & manage
Practical steps
This Requires Specialist Kidney (Nephrology) Care
Glomerulonephritis needs assessment and ongoing management by a kidney specialist, since treatment varies significantly depending on the specific underlying cause identified through tests, including sometimes a kidney biopsy.
- 1Attend specialist nephrology assessment and follow-up.This helps identify the specific cause and guides the most appropriate treatment.
- 2Manage blood pressure carefully.This is an important part of protecting kidney function, alongside any specific treatment for the underlying cause.
- 3Take prescribed medication consistently.Depending on the cause, this may include medications that calm an overactive immune response.
- 4Follow any dietary guidance given.Depending on the stage and cause, adjustments to salt, protein, or fluid intake may be recommended.
- 5Attend regular kidney function monitoring.This tracks how well treatment is working and how kidney function is changing over time.
Medical information notice
Health education, not individual medical advice
BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
BarnMD Bottom Line
Glomerulonephritis has various causes and severities, and specialist kidney care helps identify the right treatment approach for each individual situation.
Blood pressure control and consistent treatment are central to protecting kidney function over the long term.