Intrahepatic cholestasis of pregnancy (ICP) should be considered in any pregnant woman presenting with itching of skin of normal appearance alongside a raised peak random total bile acid concentration. A measurement in the 19–39 µmol/L range defines mild ICP — a clinically important threshold that shapes the management approach.
Pregnant woman with itching of skin of normal appearance and a raised peak total bile acid concentration of 19–39 µmol/L, consistent with mild intrahepatic cholestasis of pregnancy (mild ICP). This presentation meets the diagnostic threshold for ICP and warrants a structured management plan.
Management focuses on relieving maternal skin symptoms. The approach includes topical agents applied to the skin and, particularly at night, agents from an established antihistamine class to reduce itch burden. Further considerations — including specific circumstances where additional maternal supplementation may be indicated, and guidance on timing of birth planning — are set out in the full structured regimen.
DOI: 10.1111/1471-0528.17206
The diagnosis of ICP should be considered in pregnant women who have itching in skin of normal appearance and raised peak random total bile acid concentration of 19 micromol/L or more.
Mild ICP: itching and raised peak bile acid concentrations 19–39 micromol/L.
Consider topical emollients such as aqueous cream (with or without menthol added) to ameliorate skin symptoms.
Consider antihistamine agents, such as chlorphenamine, particularly at night although the effectiveness of this treatment is uncertain in women with ICP.
Consider options of planned birth by 40 weeks' gestation or ongoing antenatal care according to national guidance in women with mild ICP (peak bile acids 19–39 micromol/L) and no other risk factors; advise women that the risk of stillbirth is similar to the background risk.
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