Low-Dose Aspirin in Pregnancy: Who Should Take It and Why?
- marjorie Apple
- 2 days ago
- 3 min read
By: Samiha Saifudeen Improve Life PLLC research intern
Aspirin is a common medication used for pain relief and inflammation. However, during pregnancy, it must be used carefully because different doses can have very different effects. Dr. Waggel explained that aspirin in pregnancy should be thought about in two ways: low-dose aspirin and regular-dose aspirin. Low-dose aspirin is sometimes recommended during pregnancy for medical reasons, while regular doses are generally avoided because they can cause complications. Understanding when and why low-dose aspirin is used is important for both clinicians and patients.
Low-dose aspirin usually refers to 81 mg per day. At this dose, aspirin works mainly as an antiplatelet medication, meaning it reduces the ability of blood platelets to form clots. This improves blood flow in small blood vessels, including those in the placenta. Because the placenta supplies oxygen and nutrients to the fetus, improved blood flow can help prevent certain pregnancy complications.
In contrast, regular-dose aspirin works mainly as a pain reliever and an anti-inflammatory drug. High doses can increase the risk of bleeding, miscarriage, or problems with fetal development, especially later in pregnancy. Due to these risks, regular-dose aspirin is typically avoided unless specifically prescribed by a doctor.
Low-dose aspirin is recommended for pregnant patients who have a higher risk of developing preeclampsia, a condition involving high blood pressure and organ damage during pregnancy. Research shows that starting low-dose aspirin early in pregnancy can significantly reduce the risk of preeclampsia. Doctors recommend low
Low-dose aspirin for pregnant individuals who have a history of preeclampsia, chronic hypertension, kidney disease, diabetes, or autoimmune conditions.
The typical recommendation is 81 mg of aspirin daily. Many medical guidelines suggest starting low-dose aspirin between 12 and 16 weeks of pregnancy and continuing until late pregnancy, depending on the patient’s risk factors. The timing matters because early treatment improves placental blood flow during key stages of development.
Research over several decades has shown that low-dose aspirin can help prevent complications such as preeclampsia and poor placental blood flow. Studies show that using low-dose aspirin in high-risk pregnancies significantly reduces the chances of severe pregnancy complications while maintaining a strong safety profile when used correctly.
Although low-dose aspirin is generally considered safe when prescribed by a doctor, some risks may still exist. Possible concerns include mild bleeding risks or complications if used incorrectly. However, most studies show that the benefits outweigh the risks for high-risk pregnancies when the medication is used at the correct dose and time.
In the
s lecture video on YouTube, Dr. Waggel explained that she herself is taking low-dose aspirin during pregnancy because of its ability to improve blood flow and reduce certain pregnancy risks. She emphasized that this recommendation is based on clinical evidence and is commonly used by physicians to help prevent complications like preeclampsia. She also stressed that the dose matters: low-dose aspirin can be helpful, but regular doses may be harmful in pregnancy. Giving
Dr. Waggel's credit is important because her explanation helps clarify why the medication can be beneficial when used correctly.
Low-dose aspirin is an important medical intervention used during pregnancy for certain high-risk patients. While regular-dose aspirin can cause complications and is usually avoided, low-dose aspirin (81 mg) can help prevent conditions such as preeclampsia by improving placental blood flow. Clinical evidence supports its use in specific patients when started at the correct time and under medical supervision. Understanding the difference between low-dose and regular-dose aspirin is essential for safe medication use during pregnancy.
If you are interested in more on this topic please check out:
References:
● https://www.kofinasperinatal.org/wp-content/uploads/2015/03/Aspirin_is_safe_du reing_pregnancy_and_lactation.pdf
● https://www.truebirthpodcast.com/baby-aspirin-in-pregnancy-episode-192/ ● https://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2018/0 7/low-dose-aspirin-use-during-pregnancy
Comments