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Should I take baby aspirin while pregnant?

Last updated on April 1, 2026

Low-dose aspirin (81 milligrams) is often prescribed during pregnancy to reduce the risk of preeclampsia, which is a condition that involves high blood pressure and affects about 6% of pregnancies in the U.S. Multiple sized randomized trials have shown that daily aspirin treatment can reduce the risk of preeclampsia by about 20%. Longer-term follow-up on at least 5,000 children in these trials shows no developmental risks. Concerns about the use of aspirin in pregnancy, specifically related to bleeding, have been raised in the past, but recent updates have downgraded the evidence base for this risk, and the magnitude of any suggested effects are small. As a result, low-dose aspirin is considered a safe and effective method for preventing preeclampsia and is standardly prescribed for women at high risk for preeclampsia. However, you should always consult with your doctor to determine if low-dose aspirin is right for you based on your individual health needs and any other medications you may be taking.

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