nephritis risk reduction

Overview

Nephritis means inflammation of the kidneys. Inflammation is your body's response to infection or injury. When kidneys are inflamed, they may not work as well as they should at filtering waste and extra fluid from your blood.

Nephritis is not as common as other kidney problems, but it is a significant cause of kidney disease worldwide. Acute forms can occur at any age.

Nephritis can affect people of all ages, including children and older adults. Some types are more common after infections, while others relate to immune system problems.

Symptoms

Common symptoms

• Changes in urine color (pink, red, or foamy)
• Swelling in the face, hands, ankles, or feet
• Feeling tired or generally unwell
• Pain in the side or lower back
• Fever and chills (if caused by infection)
• High blood pressure

Symptoms in children

• Swelling around the eyes, especially in the morning
• Red or dark urine
• Reduced amount of urine
• Irritability or unusual sleepiness

Symptoms in older adults

• Confusion or drowsiness
• Nausea, vomiting, or poor appetite
• Less urine than usual
• Worsening swelling in the legs

Causes

Main causes

• Bacterial or viral infections, such as a throat infection (strep) or a urinary tract infection
• Immune system problems, where the body attacks its own tissues
• Certain medicines or toxins that can damage the kidneys
• Long-term conditions like diabetes or high blood pressure

Risk factors

• A family history of kidney disease or autoimmune disease
• Frequent or severe infections
• Taking pain relievers regularly over a long period
• Poorly controlled high blood pressure or diabetes
• Being older or having a weakened immune system

When to see a doctor

See a doctor urgently if:

• Blood in the urine
• Swelling that affects your face or ankles
• Pain in your side or lower back that doesn't go away
• Fever with pain or burning when passing urine
• Feeling very tired, confused, or short of breath

Book a routine appointment if:

• Routine check-ups to monitor blood pressure and kidney function
• Blood and urine tests if you have a condition that increases kidney risk
• Talk to your doctor if you notice changes in urination or swelling

Diagnosis

A doctor will ask about your symptoms and medical history, check your blood pressure, and order tests. Diagnosis usually involves a urine test and blood test.

Tests that may be done

• Urine test to look for blood, protein, or signs of infection
• Blood test to check kidney function and markers of inflammation
• Ultrasound or other imaging to see the size and structure of the kidneys
• Sometimes a kidney biopsy (a tiny sample of kidney tissue) to find the exact cause

What to expect at your appointment

Most tests are simple. A biopsy is usually done with a needle and local numbing. The procedure itself takes a short time, and you'll be observed before going home.

Treatment

Treatment for nephritis depends on the cause and how severe it is. The goal is to reduce inflammation, manage symptoms, and protect kidney function. Your healthcare team will create a plan that fits your needs.

Self-care at home

• Drink enough water, unless your doctor tells you to limit fluids
• Take any prescribed medicines exactly as directed
• Avoid medicines that can harm the kidneys, such as non-prescription pain relievers, unless your doctor approves
• Monitor your blood pressure at home if advised

Medical treatments

Treatment may include medicines to lower blood pressure, reduce inflammation, or control the immune system. In more severe cases, short-term dialysis or treatment to remove fluids may be needed. Never stop or start any treatment without speaking to your doctor.

When is surgery considered?

Surgery is rarely needed for nephritis unless there is a kidney stone or blockage that needs to be removed. That decision would be made by a specialist after further tests.

Living with this condition

Living with nephritis may mean regular checkups, taking medications, and monitoring your blood pressure. Most people can keep doing normal activities, but it's important to pace yourself and rest when tired.

Lifestyle tips

• Stay physically active with gentle exercise like walking
• Quit smoking if you smoke
• Limit or avoid alcohol as advised by your doctor
• Manage stress with relaxation techniques or mindfulness

Diet and exercise

Your doctor or a dietitian may recommend a kidney-friendly diet. That might include eating less salt and processed food, and getting enough (but not too much) protein. Exercise helps with blood pressure and energy levels, but check with your team about what's safe for you.

Mental health and emotional wellbeing

Living with a kidney condition can be stressful and sometimes overwhelming. It’s normal to feel anxious or low. Talk to your doctor about how you're feeling. If you ever have thoughts of harming yourself, contact your local emergency services or a crisis helpline immediately.

Prevention

Many cases of nephritis cannot be completely prevented, but you can lower your risk by staying healthy and managing conditions that affect the kidneys.

Vaccines

Staying up to date with recommended vaccines, such as the flu vaccine, can prevent infections that sometimes lead to nephritis.

Screening programmes

Routine blood pressure checks and simple urine or blood tests can help catch kidney problems early. Ask your doctor if you should have regular screening.

Complications

If left untreated

• Permanent kidney damage or chronic kidney disease
• Rising blood pressure that is hard to control
• Build-up of waste products in the blood (uremia)
• Fluid overload leading to heart problems

Long-term outlook

With early diagnosis and the right care, many people with nephritis improve and maintain good kidney function. Even if kidney damage occurs, there are effective treatments to slow it down and support quality of life.

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