IgA Nephropathy and Pregnancy: What to Know

Many people diagnosed with IgA nephropathy are in their teens, twenties and thirties — so the question of pregnancy comes up often. The reassuring headline: many women with IgA nephropathy have successful pregnancies. The important qualification: outcomes are best when the pregnancy is planned with the kidney team, because kidney function, urine protein and blood pressure before conception all influence how a pregnancy goes. This article explains why planning matters and what care usually looks like. For the condition itself, see What Is IgA Nephropathy?

Why planning ahead matters

Pregnancy naturally increases the kidneys' workload. When kidney function is preserved, urine protein is low and blood pressure is controlled, most women do well. The risks — to mother and baby — rise when kidney function is significantly reduced, protein leakage is heavy, or blood pressure is uncontrolled, because those pregnancies carry higher chances of complications such as pre-eclampsia, early delivery, and a temporary or lasting worsening of kidney function. None of this means "don't get pregnant"; it means the timing and preparation are worth a conversation before you conceive.

Before pregnancy: the preconception review

• Check the numbers: recent eGFR, urine protein and blood pressure give the clearest picture of risk. You can read about how these are measured on the IgA nephropathy hub.
• Review every medicine: some kidney-protective medicines — notably ACE inhibitors and ARBs — are not used in pregnancy, so the team will adjust the plan in advance rather than in a hurry.
• Optimise first: if protein or blood pressure is high, treating and stabilising things before conception improves the starting point.
• Meet the team: care is usually shared between the kidney specialist and an obstetric team experienced in kidney disease.

During pregnancy: closer monitoring

Expect more frequent checks than a standard pregnancy: blood pressure at visits (and often at home), urine protein, and kidney blood tests, alongside the usual pregnancy scans and reviews. The team watches particularly for rising blood pressure and protein — which can signal pre-eclampsia, a pregnancy complication that needs prompt treatment — and for changes in kidney function. Some changes in urine protein and blood pressure are expected in pregnancy even with kidney disease, which is why having your pre-pregnancy baseline on record is so useful.

After the birth

Kidney checks continue after delivery: blood pressure, urine protein and kidney function are reviewed, and medicines that were paused for pregnancy can usually be restarted — the team will advise on timing, including around breastfeeding. Most women's kidney function returns to its pre-pregnancy baseline; a follow-up plan makes sure any change is caught early.

What about fathers with IgA nephropathy?

For men with the condition, there is no direct effect of pregnancy on their kidneys from a partner's pregnancy, and fatherhood is generally not restricted by the diagnosis itself. If you take medicines and are planning a family, a quick review with your kidney team is still sensible.

Questions to ask before you try

• Based on my latest eGFR, urine protein and blood pressure, how does my risk look?
• Which of my medicines need to change before conception, and when?
• How often will I be seen during pregnancy, and by whom?
• What symptoms should make me contact the team urgently during pregnancy?

Our printable visit checklist can help you organise these questions for your appointment.

References & further reading

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) — IgA Nephropathy: https://www.niddk.nih.gov/health-information/kidney-disease/iga-nephropathy

National Kidney Foundation — IgA Nephropathy: https://www.kidney.org/kidney-topics/iga-nephropathy

MedlinePlus — IgA Nephropathy (Medical Encyclopedia): https://medlineplus.gov/ency/article/000466.htm

Mayo Clinic — IgA Nephropathy (Berger's Disease): https://www.mayoclinic.org/diseases-conditions/iga-nephropathy/symptoms-causes/syc-20352268

This article is for general education only and is not medical advice. Pregnancy with any kidney condition should be planned with your kidney and obstetric teams, who know your individual results.