Obstetric cholestasis test: what to know

Obstetric cholestasis is linked with a change in how the liver handles bile during pregnancy. A blood sample can measure bile acids and assess liver function. Bile acid results help the maternity team judge whether the pattern fits cholestasis and how closely you need to be followed.

A single early result may not explain ongoing itching. Symptoms can begin before blood results become abnormal, and levels can change later. Your clinician may therefore arrange repeat blood tests rather than dismissing continuing symptoms after one reassuring result.

Tell your maternity team when the itching began, where it is strongest, whether it disrupts sleep, and whether you have noticed dark urine, pale stools, or yellow skin. Mention every medicine, supplement, and skin product you use. Ask whether you need to attend a hospital blood clinic or maternity unit and when you should expect follow-up.

Keep a simple record of symptom changes and fetal movements. Do not delay contacting the team because the itching is intermittent or because there is no visible rash. Follow the testing and monitoring plan they give you.

Contact maternity services urgently for reduced or changed fetal movements, vaginal bleeding, fluid loss, painful contractions, or severe worsening symptoms. Seek prompt advice for yellowing of the skin or eyes, dark urine, pale stools, right upper abdominal pain, or marked illness. These symptoms require clinical assessment and are not suitable for self-diagnosis from a test result alone.

Ask which tests will be taken, whether you need to fast, when the results will be available, and when repeat testing is recommended. Ask how your symptoms and bile acid results affect monitoring, medication, and timing of birth. If an induction is proposed, ask what the plan involves and read about Induction of Labour.