Pregnancy

A pregnancy can fill up with rules and still leave you unsure which ones matter.

US review committees found that more than 80% of pregnancy-related deaths were preventable. This page is about the few causes behind most of those deaths, and the questions worth asking before a visit fills up with smaller rules.

This page names those causes, when the deaths happened, and what to ask at the next visit. It is not prenatal care, and it is not a promise about your pregnancy.

Six causes carried most of the reviewed deaths

Maternal Mortality Review Committees in 36 states shared 1,018 pregnancy-related deaths from 2017-2019 with the CDC. A cause was identified for 987 of them. Six causes accounted for over 75% of those deaths (CDC, 2017-2019).

Mental health conditions were the single largest cause. The committees counted suicide and overdose related to substance use in that line. If you or someone close to you may be in danger, contact emergency services. In the United States, call or text 988. A wider frame for care systems sits in healthcare, and day-to-day support sits in mental health.

The long list that feels urgent and moves little is the other pile: nursery spreadsheets, supplement threads, and birth-plan essays that never mention bleeding, the heart, or the year after the birth.

Most of the deaths were not in the early visits

Among deaths with a known time, 21.6% were during pregnancy, 13.2% on the day of delivery, and 12.0% on days 1-6. Then 23.3% fell on days 7-42, and 30.0% on days 43-365. The CDC's summary: 53% occurred from day 7 through one year (CDC, 19 Sep 2022).

Early visits still matter. They date the pregnancy, check pressure, and open screening. The early visits are one window. Serious causes also appear later, so the same questions stay useful. The dataset also shows why follow-up cannot end at delivery: some reviewed deaths happened after the six-week check, including during the rest of the first postpartum year.

Sleep and food in that year are practical, not decorative. Pair the visit card below with sleeping and diet when the days get thin. If other people are sharing the care, the same uneven attention shows up in childcare.

The leading cause is not the same for everyone

In the same 36-state file, cardiac and coronary conditions were the leading cause for non-Hispanic Black people. Mental health conditions led for Hispanic and non-Hispanic White people. Hemorrhage led for non-Hispanic Asian people. Some groups were too small to rank. One national script does not fit every patient.

Ask which warning signs your own history makes more important. A clinician who only recites a generic top-six list is skipping the part the committees had to publish separately.

Guidance that stays, without a fake percent

Stopping alcohol and tobacco is still the right ask. Those changes are worth making because they sit near causes the committees kept seeing. Bring substance use to the visit as itself, especially because overdose sits inside the largest cause line.

Activity has a real guideline and a fake ratio. ACOG's advice is about 150 minutes a week of moderate activity in pregnancy, when your clinician agrees (ACOG Committee Opinion 804). Keep the minutes when your clinician agrees. Movement is one real lever, alongside the questions you take to the visit.

Keep the appointments, including the ones that feel short. The death timing says the dangerous stretch is longer than the first trimester and longer than the first week at home.

A card for the next visit

Write these six lines on a card. Leave a blank for the answer you actually get. The card is the part a generic pregnancy checklist does not have, because it is built from the cause shares above, not from a shopping list.

• Which of the six causes fits my history, and which warning sign do I memorize?
• Where do I go for heavy bleeding, and what counts as heavy?
• Who do I call for chest pain, a racing heart, or breathlessness in the month after birth?
• What is the plan if mood crashes or substances creep back in the first year?
• Which symptoms are an emergency tonight, not a portal message tomorrow?
• When is the visit after six weeks, since 30% of these deaths were on days 43-365?

Misreads that waste a trimester

"The first visits catch most of the danger."
They catch dating, pressure, and a lot of screening. In this death file, 53% of the deaths with a known time were from day 7 through one year.

"If 80% were preventable, my habits were 80% of the story."
Preventable includes recognition, transport, and treatment, not only what you eat or avoid. The committees counted causes and whether care could have changed the outcome.

"About 15% of high-risk pregnancies cause 90% of complications."
That ratio is not in the CDC tables used here. Use the cause list and the timing table instead.

8020 move: Take the six-line card to the next visit. Ask what to watch in the year after the birth, not only what to buy before it.

What "preventable" means, and what a partner can do

Preventable, in this CDC file, means the committees saw a chance to change the outcome. That chance might have been a clinician recognizing hemorrhage, a system that reached someone in the month after birth, or care for mental health and substances. It is not a verdict that the person who died failed a lifestyle test.

The practical split for a partner or friend is small. Know the six causes. Know the number to call. Do not spend the pregnancy optimizing a registry while nobody has talked about breathlessness in week eight postpartum. The 30% of deaths on days 43-365 are why the six-week visit is not the end of paying attention.

A useful week looks dull. One appointment kept. One conversation about mood and substances. One written place to go for bleeding or chest pain. The ignored week looks busy: three new pillows, a birth-plan draft, and no answer to "what is an emergency tonight?"

If you are the pregnant person, you do not have to memorize the percentages. You have to leave the visit with one warning sign that matches your history, and a person who will notice if you go quiet later. Bring the card. Ask the sixth line out loud, the one about days 43-365.

Sources

• CDC, Pregnancy-Related Deaths: Data From Maternal Mortality Review Committees in 36 US States, 2017-2019. More than 80% preventable. Six causes over 75%. Timing table: 21.6%, 13.2%, 12.0%, 23.3%, 30.0%.
• CDC media briefing, 19 Sep 2022, same file, including the leading cause by race and ethnicity.
• ACOG Committee Opinion 804, physical activity in pregnancy and postpartum, about 150 minutes a week when appropriate. A guideline you can use.
• This is not medical advice, a diagnosis, or a reason to skip care.