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Questions Young Adults Should Ask After a C3G or IC-MPGN Diagnosis

Medically reviewed by Walead Latif, D.O.
Written by Alyssa Singer and Mikayla Morell
Posted on July 15, 2026

Key Takeaways

  • Getting a rare kidney disease diagnosis like C3G or IC-MPGN as a young adult can bring up many questions, but asking the right ones can help you feel more in control of your health.
  • View all takeaways

Getting a rare kidney disease diagnosis as a young adult can raise a lot of questions. You may wonder what your diagnosis means, how it could affect school or work, or what to expect in the future.

You don’t have to figure out everything at once, but asking the right questions can help you feel more in control of your health and prepare for the future.

There may be a lot to learn, so where do you start? Here are some important questions to ask your care team and nephrologist after your diagnosis.

What Type of Kidney Disease Do I Have?

Understanding your condition and how it affects you can empower you to make informed decisions about your care.

Complement 3 glomerulopathy (C3G) and primary immune complex-mediated membranoproliferative glomerulonephritis (IC-MPGN) are rare kidney diseases that affect the glomeruli — the tiny filters in your kidneys.

Both conditions can cause kidney inflammation and abnormal deposits in the glomeruli. They can also cause protein to leak into your urine. Although these conditions share some features, they can develop for different reasons and may require different treatment approaches.

What Caused My Condition?

Understanding what caused your kidney disease can help guide your treatment.

Some cases of IC-MPGN are secondary, meaning they’re caused by another health condition, such as an infection, an autoimmune disease, or another underlying problem. Other cases are primary — also called idiopathic — which means the cause isn’t known.

C3G is often linked to problems with the complement system, which is part of the immune system. In some people, genetic mutations (changes) or other immune system factors can affect how the complement system works.

If you haven’t had genetic testing, you may want to ask your doctor about it. Genetic testing may help your doctor better understand the cause of your condition. However, not everyone with C3G or IC-MPGN has a genetic mutation.

How Often Do I Need Follow-Up Testing?

If you have C3G or IC-MPGN, you’ll likely need regular monitoring. Blood and urine tests help your doctor check how well your kidneys are functioning.

How often you need appointments or lab tests depends on your kidney function, symptoms, and treatment plan, as well as whether your condition is stable. Ask your doctor:

  • How often should I come in for follow-up visits?
  • How often do I need blood and urine tests?
  • What symptoms should prompt me to call your office?

What Do My Test Results Mean?

After diagnosis, you may hear a lot of new terms, such as “proteinuria,” “creatinine,” “estimated glomerular filtration rate (eGFR),” “hematuria,” and “complement levels.” It’s OK to ask your doctor to explain what these mean.

Blood tests can show how well your kidneys are filtering waste from your body. Urine tests can check for protein, blood, and other signs that your kidneys may be damaged. Ask your care team to review your results with you and explain what they mean for your kidney health.

What Are My Treatment Options?

Your treatment options depend on which type of kidney disease you have, what caused it, and how early it was diagnosed. Ask your doctor which options are right for you. These questions can help guide the conversation:

  • What treatments do you recommend for me right now?
  • What is the goal of treatment?
  • What are the benefits and risks of each treatment?
  • How will we know if the treatment is working?

Although there’s no cure for primary IC-MPGN or C3G, treatment can help manage symptoms and slow disease progression. Treatment may include supportive care, such as managing blood pressure, and medicines that target the immune system or complement system.

Treatment for secondary IC-MPGN focuses on treating the underlying cause, such as an infection, an autoimmune disease, or another health problem.

Are There New Treatments or Clinical Trials I Should Know About?

Research on these rare kidney diseases is ongoing. Some complement-targeted medicines are now approved for certain people with C3G and IC-MPGN. Researchers are also studying other potential treatments.

Ask your doctor whether any new treatments or clinical trials might be an option for you.

Could I Need Dialysis or a Kidney Transplant in the Future?

Not everyone with C3G or IC-MPGN will develop kidney failure, but some people do. It can be stressful to think about dialysis or a kidney transplant, but learning about these possibilities can help you plan ahead and better understand your risk. You might ask:

  • What is my risk of kidney failure?
  • What signs could mean my kidney disease is getting worse?
  • What can we do now to help protect my kidney function?

Do I Need To Make Any Lifestyle Changes?

Lifestyle changes can’t cure C3G or IC-MPGN, but they may help support your kidney health and overall well-being. Your doctor may recommend changes based on your blood pressure, lab results, medications, and stage of kidney disease. You might ask:

  • Do I need to limit salt or make other changes to my diet?
  • What type of exercise is safe and recommended for me?
  • Should I avoid certain foods, supplements, or over-the-counter medications?
  • Can you refer me to a registered dietitian?

A kidney-friendly plan may include managing your blood pressure, limiting sodium, staying physically active in safe ways, and avoiding medications that can harm the kidneys, such as certain pain relievers.

Before making major diet or medication changes, ask your care team what’s safe for your situation.

How Could This Affect School, Work, or Living on My Own?

As a young adult, you may be balancing kidney disease with college, work, relationships, or living on your own. Symptoms, frequent medical appointments, or medication side effects can affect your day-to-day life. You can ask your doctor:

  • Could this condition affect my energy, focus, or ability to work or attend school?
  • Can you provide documentation if I need accommodations at school or work?
  • Should I avoid any particular activities?

If symptoms or appointments make it hard to keep up with work or school, your doctor may be able to help you request accommodations, such as a flexible schedule, time off for appointments, or permission to carry medications or medical supplies.

What Should I Know About Dating, Sex, and Pregnancy?

C3G and IC-MPGN can raise questions about dating, sex, birth control, pregnancy, and fertility. These conversations may feel personal, but your care team is there to help you make safe, informed decisions. Consider asking these questions:

  • Is it safe for me to become pregnant in the future?
  • Could pregnancy affect my kidney disease?
  • What birth control options are safe for me?

Some medications that are used to manage C3G or IC-MPGN are not safe to take during pregnancy. Talk with your nephrologist and gynecologist about your options if you’re planning a pregnancy or could become pregnant.

In some people, genetic factors may play a role in C3G or certain cases of IC-MPGN. If you have questions about whether genetics may have contributed to your condition or what it could mean for your family, ask your doctor whether meeting with a genetic counselor could be helpful.

What Mental Health Resources Are Available?

Getting diagnosed with a rare kidney disease can feel overwhelming. You may feel anxious, frustrated, isolated, or unsure how to explain your condition to friends, roommates, partners, or co-workers.

People with C3G and IC-MPGN may have a higher risk of depression. Ask your doctor about mental health resources and support that may be available to you. Possible questions include:

  • Can you refer me to a therapist or counselor?
  • Do you know of any support groups for people with rare kidney disease?
  • What should I do if I’m feeling overwhelmed?

A therapist or counselor can help you cope with the emotional challenges of living with a rare kidney disease. They can also help you navigate social dynamics and practice how to talk about your diagnosis with friends and family.

Give Yourself Some Grace

C3G and IC-MPGN are challenging diseases, but you’re not alone. As you adjust to this new chapter, lean on your care team, loved ones, and others who understand what you’re going through.

A C3G diagnosis can bring up all kinds of emotions. Be patient with yourself as you learn more about your condition and its effect on your daily life.

Learning about your treatment options and what to expect can help you feel more prepared and make it easier to cope with your emotions.

Join the Conversation

On MyKidneyDiseaseTeam, people share their experiences with kidney disease, get advice, and find support from others who understand.

What questions have you found most helpful to ask your care team? Let others know in the comments below.

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