Nephritis: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Nephritis?
A primary care doctor often finds nephritis first; many people are also referred to a nephrologist, a kidney specialist. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is nephritis?
Nephritis is swelling and irritation inside the kidneys. The kidneys are the two organs that filter waste and extra water out of your blood. When the filters become inflamed, they may stop working well. Doctors often call this condition nephritis, which simply means kidney inflammation.
Nephritis happens when parts of the kidney become swollen and irritated. The most common form affects tiny filtering units called glomeruli, which can leak protein and blood into the urine.
Symptoms
Some people feel fine at first, so it is sometimes found on a routine urine test. Symptoms can include puffy eyes, swollen legs or ankles, foamy or blood tinged urine, high blood pressure, and fatigue.
Causes and who gets it
Infections, diabetes, high blood pressure, immune attacks such as lupus, some medicines, and certain inherited conditions can all cause nephritis.
How doctors diagnose it
Doctors usually start with urine and blood tests and check blood pressure. Sometimes an ultrasound is ordered, or a kidney biopsy is done, removing a tiny piece of kidney tissue with a thin needle to study under a microscope.
Treatment
Treatment depends on the cause. Infections are treated first, and immune attacks may be treated with medicines such as corticosteroids. Blood pressure medicines can protect the kidney filters. Some people recover fully while others develop long term kidney disease.
When to see a doctor
Call a doctor if you notice foamy urine, blood in the urine, or new swelling in your face, legs, or ankles. Finding kidney problems early gives doctors more options.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance; a concierge doctor usually charges more and often works alongside insurance. Either can order tests and follow kidney function, referring severe cases to a nephrologist.
Common questions
Is nephritis the same as a kidney infection?
No. A kidney infection, called pyelonephritis, is usually caused by bacteria and often comes with fever and pain. Nephritis is inflammation of the kidney filters and can have many causes, including immune problems.
Can nephritis go away on its own?
Some mild cases, especially in children after certain infections, do get better with little treatment. Other types last a long time and need ongoing care. Only testing can tell which situation applies, so anyone with symptoms should see a doctor.
Does nephritis always lead to kidney failure?
No. Many people recover or keep stable kidney function with treatment. Others may develop chronic kidney disease, which is long term damage that needs regular monitoring. Outcomes differ from person to person.
Can I prevent nephritis?
You cannot prevent every type, but you can lower some risks. Controlling blood pressure and blood sugar, treating infections promptly, and avoiding unnecessary pain relievers can help protect your kidneys.
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Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
