We Are Failing Mothers. Quietly. Systematically. With the Best Intentions.

If you had preeclampsia you must get your kidney function checked for the rest of your life. Simple blood tests.

A woman has preeclampsia. She delivers. Her baby goes to the NICU. She goes home two days later with a blood pressure cuff and instructions to follow up in six weeks.

She does. Her blood pressure is better. Her doctor says she looks great. She moves on.

Ten years later, she is tired all the time. Her ankles swell. Her doctor orders labs. Her kidney function is seriously impaired.

Nobody made a mistake. Nobody missed an obvious sign. The system did exactly what it was designed to do. That is the problem.

The Connection We Are Not Making

Preeclampsia, preterm birth, and delivering a baby that is small for gestational age are not just pregnancy complications. They are warning signals for what comes next, specifically, for the kidneys.

Chronic kidney disease (CKD) can develop silently, over years, with no symptoms until it is advanced. Pregnancy complications are among its most powerful predictors. And almost no one is connecting these dots at the postpartum visit.

Women with preeclampsia face a 5-fold greater risk of end-stage renal disease, the point at which the kidneys fail and dialysis or transplant becomes necessary. If that preeclampsia was preterm, the risk rises to 9-fold.

CKD is the 9th leading cause of death in women. It disproportionately affects women. And it is almost entirely absent from postpartum care guidelines.

The Guidelines Know. The Clinics Do Not.

The 2024 KDIGO guidelines, from the leading international nephrology organization, explicitly list preeclampsia as a high-risk condition requiring CKD screening. Nephrology societies have made this clear.

ACOG and primary care guidelines focus postpartum follow-up on blood pressure, lipids, and glucose. Kidney function is not there.

The result is a gap between what nephrology recommends and what obstetrics delivers. And women fall through it.

What the Numbers Show

In a Swedish cohort study of more than 170,000 pregnancies, only 20% of women with preeclampsia had kidney function tested in their first postpartum year. Only 10% had urine albumin tested, the most sensitive early marker of kidney damage.

In the Geisinger Health Study, only 31% of women had kidney function checked within 6 months of delivery.

Yet when women were systematically evaluated postpartum in a French-Italian multicenter study, 19% had newly diagnosed CKD. The expected rate in women of childbearing age is around 3%.

We are not finding CKD in these women because we are not looking for it.

Two Tests. A Few Dollars. Years of Difference.

The screening is not complicated or expensive. Two tests cover it: a GFR -- glomerular filtration rate, already included in a standard basic metabolic panel -- and a urine albumin-to-creatinine ratio, known as uACR.

These tests are ordered every day in every clinic. They cost almost nothing. They are just not being ordered for these women, after these pregnancies.

Early CKD is manageable. Blood pressure control slows progression. Certain medications protect kidney function. Lifestyle changes matter. None of this is possible if the diagnosis is never made.

This Is Not a One-Time Postpartum Check

A woman who had preeclampsia at 32 does not need one kidney test at her 6-week visit and then nothing. She needs her pregnancy history to follow her.

At her annual physical at 40. At 45. At 55. Every time a clinician sees her, the question should be on the table: did you have preeclampsia or a pregnancy complication? When were your kidneys last checked?

This is a lifelong conversation that pregnancy history must inform.

What Needs to Change

Awareness unlocks everything. When clinicians understand this connection, they order the right tests. When health systems understand it, they build it into protocols. When women understand it, they can advocate for themselves at any appointment -- at 10 weeks postpartum, at their annual physical, at 45, at 55.

They can walk in and say: I had preeclampsia. Have you checked my kidneys this year?

That sentence, said by an informed woman to any clinician, is enough to start the process. We just need women to know to say it.

My Take

I have spent decades studying what happens to women during pregnancy. I have watched postpartum care shrink to a single visit focused on contraception and blood pressure. I have seen what happens when the complexity of what pregnancy does to a body is treated as something that resolves at discharge.

It does not resolve. It echoes.

Preeclampsia is not a pregnancy problem that ends when the baby arrives. It is a signal that the body sends -- about the cardiovascular system, about the kidneys, about long-term risk -- and we are choosing, through inaction, not to read it.

The tests exist. The evidence exists. The guidelines exist -- in nephrology, if not yet in obstetrics. What is missing is the will to make postpartum care mean something beyond six weeks.

We can fix this. It starts with asking the right questions.