Why might I vomit bile during pregnancy?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Vomiting bile during pregnancy may signal an underlying liver issue, which can develop as your body undergoes significant hormonal and physiological changes. Conditions like intrahepatic cholestasis of pregnancy or severe morning sickness (hyperemesis gravidarum) can sometimes cause bile in vomit, and these require prompt medical evaluation to protect both you and your baby.

Because symptoms during pregnancy can overlap and be difficult to interpret on your own, taking a free, instant, online symptom check is a smart first step. It can help you understand what may be causing your symptoms, identify possible conditions, and guide you on when to seek care—so you can move forward with clarity and confidence.

Reviewed for medical accuracy: 07/15/2026

Important Next Steps

Learn why you might be vomiting bile See if your vomiting needs urgent care Discover possible causes of bile vomiting Find OTC options for bile vomiting relief Find a doctor for bile vomiting Learn safe home remedies for bile vomiting Understand if bile vomiting needs evaluation

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Explanation

Vomiting bile during pregnancy can happen for a few reasons, often linked to changes in the liver. During pregnancy, the liver might not work as well, which can lead to problems like increased bile acids.

Possible Causes:

Liver Changes: Pregnancy can affect how the liver functions, sometimes causing issues like increased bile acids.
Bile Acids: When bile acids build up, it can cause nausea and vomiting.

If you are experiencing these symptoms, it's important to talk to a healthcare provider to understand what's happening and to get the right care. You can start by taking a free symptom checker test to help identify potential causes and determine if you need immediate medical attention.

(References)

Järnfelt-Samsioe A, Eriksson B, Waldenström J, & Samsioe G. (1986). Serum bile acids, gamma-glutamyltransferase and routine .... Gynecologic and obstetric investigation, 2873084.
Hay JE. (2008). Liver disease in pregnancy. Hepatology (Baltimore, Md.), 18265410.
Panther E, & Blum HE. (2008). [Liver diseases in pregnancy]. Deutsche medizinische Wochenschrift (1946), 18946855.

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