Late Pregnancy · Liver
ICP (Obstetric Cholestasis) — Itchy Palms + Bile Acids
Severe itching of palms + soles in late pregnancy (no rash) = potentially ICP. Bile acid blood test confirms. Urso treatment + planned delivery 35-38 weeks based on severity. Stillbirth risk rises sharply if bile acids ≥100 µmol/L (Ovadia 2019). RCOG Green-top 43.
Last reviewed 2 June 2026
Intrahepatic cholestasis of pregnancy
Bile-acid-stratified delivery timing
Troubleshooting + common pitfalls
- Pitfall: Treating any pruritus as ICP.
Solution: Bile acids confirm. Pregnancy pruritus is common (~20 %); ICP affects ~0.7 %. Polymorphic eruption of pregnancy (PEP), pemphigoid gestationis, eczema, scabies are differentials. Persistent palm/sole pruritus without rash & worse at night is classical for ICP. - Pitfall: Using ALT instead of bile acids for severity.
Solution: Bile acids are the diagnostic and severity marker; ALT is supportive but not the stratifier. Ovadia 2019 IPD-MA identified the ≥ 100 µmol/L bile-acid threshold for stillbirth risk; ALT doesn’t correlate with stillbirth as cleanly. - Pitfall: Reassuring with normal CTG in severe ICP.
Solution: Stillbirth in ICP is SUDDEN — CTG / BPP / Doppler do NOT predict it. Don’t use surveillance reassurance to defer delivery past 36 wk in severe ICP. - Pitfall: Withholding UDCA because PITCHES was negative for stillbirth.
Solution: PITCHES (Lancet 2019) showed UDCA didn’t reduce stillbirth, BUT it improves maternal itch and biochemistry. Continue using for symptom control; just don’t let it falsely reassure about fetal risk. - Pitfall: Random (non-fasting) vs fasting bile acid confusion.
Solution: RCOG 2022 uses NON-FASTING (random) total bile acids; fasting was previously standard but doesn’t change diagnosis or severity bands. Use whichever your lab reports consistently. - Pitfall: Missing alternative cause of cholestasis.
Solution: If bile acids > 200 μmol/L, very early onset (< 24 wk), persistent post-delivery, severe transaminitis (> 1000), jaundice, or family history — investigate Wilson’s, viral hepatitis, autoimmune, biliary obstruction, drug-induced cholestasis. - Pitfall: Vitamin K forgotten in severe ICP.
Solution: Severe ICP can cause vitamin-K-dependent coagulopathy. Check PT; replace 10 mg PO daily if prolonged. Neonate also gets standard IM vitamin K at birth. - Pitfall: Not warning about recurrence.
Solution: 60–90 % recurrence in subsequent pregnancies. Combined hormonal contraception postpartum can also cause pruritus / cholestasis in some women. - Pitfall: Delivering everyone at 35 wk regardless of severity.
Solution: Stratify by bile acids. Severe (≥ 100) → 35–36 wk. Moderate (40–99) → 38–39 wk. Mild (< 40) → 39–40 wk. Iatrogenic prematurity in mild ICP causes more harm than the stillbirth risk it’s trying to prevent. - Pitfall: Persisting symptoms postpartum dismissed.
Solution: ICP should resolve completely within 4–6 weeks postpartum — if itch / biochemistry persist, investigate other liver disease. - Pitfall: Forgetting maternal mental health.
Solution: Sleep-deprivation from nocturnal itch is severe in ICP. Mental health, sleep hygiene, antihistamine for night use, cool baths. - Pitfall: Aspirin or NSAIDs in jaundiced ICP.
Solution: Avoid NSAIDs; aspirin OK if PE indication.
Educational tool only — not medical advice. Ovadia 2019 Lancet IPD-MA; RCOG GTG 43 (2022); SMFM Consult #61; PITCHES Lancet 2019. Management by obstetric / maternal-fetal medicine team.
What does this mean?
Intrahepatic cholestasis of pregnancy (ICP) is the commonest pregnancy-specific liver disorder, affecting about 0.5–2 % of pregnancies (higher in South Asian and Scandinavian populations). The clinical hallmark is persistent pruritus, especially of palms and soles, worse at night, often without rash, accompanied by raised total bile acids on a random blood sample. The single most important number is the peak total bile acid concentration. The Ovadia 2019 Lancet individual-patient-data meta-analysis (5,557 women, the definitive evidence) showed a sharp inflection in stillbirth risk above 100 μmol/L from 35 weeks onward; below 40 μmol/L the risk is similar to background. The RCOG 2022 update operationalised this into three bands: mild (< 40 μmol/L) deliver 39–40 wk; moderate (40–99) 38–39 wk; severe (≥ 100) 35–36 wk. Two important counter-intuitive points: (1) CTG / BPP / Doppler do not predict ICP stillbirth — it is a sudden event, so antenatal surveillance does not justify expectant management past the indicated delivery week. (2) Ursodeoxycholic acid (UDCA) helps maternal itch but does not reduce stillbirth (PITCHES Lancet 2019 was negative). Use UDCA for symptom relief, not as fetal protection. Vitamin K replacement if PT is prolonged (severe cases). Counsel 60–90 % recurrence in future pregnancies and a small but persistent association with later hepatobiliary disease.
What is ICP?
Intrahepatic Cholestasis of Pregnancy (ICP)— pregnancy-specific liver condition where bile acids build up in the blood. The bile acids in your skin cause intense itching.
Usually palms + soles first; can spread. Worse at night. NO rash (just scratch marks).
Affects ~1 in 140 pregnancies UK; higher in South Asian / Scandinavian / Hispanic women, family history. Resolves within days-weeks after birth.
Itchy palms = same-day blood test
UK NHS: itchy palms / soles in pregnancy + no rash should prompt SAME-DAY blood test for ICP. Don’t wait.
Blood test is cheap + quick: bile acids + liver enzymes (ALT).
Diagnosis
- Total bile acids (random / non-fasting) >10 µmol/L = diagnostic.
- ALT, GGT may also be raised.
- Itching + bile acids >10 = ICP confirmed.
Screen for other causes if: very early onset (<24 weeks); bile acids >200; jaundice; very raised liver enzymes; family history of liver disease.
Stillbirth risk by bile acid level
Ovadia 2019 Lancet meta-analysis (5,557 women):
- <40 µmol/L: ~background risk.
- 40-99 µmol/L: slightly raised, mainly from 35+ weeks.
- ≥100 µmol/L: sharply raised from 35 weeks onward (~3% if untreated).
Risk manageable with appropriate care. Most babies born to ICP mothers: healthy.
Treatment
- Ursodeoxycholic acid (Urso, UDCA) — first-line; 500-1500 mg/day; safe in pregnancy + breastfeeding.
- Antihistamines — chlorphenamine (Piriton) at night for sleep.
- Cool baths, cold compresses, calamine lotion.
- Weekly blood tests for bile acids + LFTs.
Delivery timing
- Mild (bile acids 10-39): 39-40 weeks.
- Moderate (40-99): 37-38 weeks.
- Severe (≥100): 35-37 weeks.
Induction usually offered. Continuous CTG in labour. Antenatal steroids if delivery before 36 weeks.
Will Urso work?
Evidence mixed. Helps ITCH and liver enzymes. PITCHES trial 2019 showed no clear stillbirth reduction; later subgroup analyses suggested benefit. UK / RCOG standard treatment.
Most women report symptom improvement within days-week. Safe in pregnancy + breastfeeding.
Coping with severe itch
- Cool temperatures — AC, fan, cold bedroom.
- Cool baths with oatmeal or sodium bicarbonate.
- Cold compresses / ice packs on palms / soles.
- Cotton gloves at night to prevent scratching damage.
- Distraction — TV, audiobooks.
- Antihistamines at bedtime.
- Gentle moisturiser (avoid perfumed).
- Mental health support — sleep deprivation real.
Next pregnancy
~70-80% recurrence. Preconception discussion with GP; bile acid testing from 24-26 weeks if symptoms. Plan more intensive monitoring. Not your fault — genetic predisposition.
Different scenarios — ICP
Scenario 1: 32 weeks, severe itchy palms + soles, no rash
Same-day bloods. If bile acids >10 = ICP. Urso. Weekly monitoring. Delivery plan based on peak.
Scenario 2: Bile acids 35, otherwise mild ICP
Urso. Weekly bloods. Delivery 39-40 weeks. Usually uncomplicated.
Scenario 3: Bile acids 150 at 34 weeks
Severe. Steroids for baby’s lungs. Delivery 35-37 weeks planned. Continuous monitoring. NICU briefing.
Scenario 4: Previous ICP, this pregnancy 24 weeks, itching starting
Known recurrence pattern. Bloods early. If positive, start Urso. Intensive monitoring. May develop earlier delivery plan.
Scenario 5: Itchy palms + jaundice (yellow eyes), 20 weeks
Atypical — very early onset + jaundice = workup beyond standard ICP. Hepatitis screen, autoimmune, biliary obstruction. Specialist hepatology + obstetric input.
Care guidance — ICP
- Same-day bloods for any itchy palms / soles in pregnancy.
- Weekly monitoring if diagnosed.
- Urso first-line treatment.
- Antihistamines for sleep.
- Cool environment + cold compresses.
- Planned delivery by severity.
- Steroids if preterm.
- Continuous CTG in labour.
- Postpartum: itching resolves within days-weeks.
- Next pregnancy: recurrence ~70-80%; plan early.
- Support: ICP Support charity (UK), Sands.
Sources
- RCOG Green-top Guideline 43. Obstetric cholestasis (2022 update).
- Ovadia C, et al. Association of adverse perinatal outcomes of intrahepatic cholestasis of pregnancy with biochemical markers: results of aggregate and individual patient data meta-analyses. Lancet 2019.
- Chappell LC, et al. PITCHES trial: ursodeoxycholic acid versus placebo in women with intrahepatic cholestasis of pregnancy. Lancet 2019.
- ICP Support (UK charity). icpsupport.org.
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Frequently asked questions
What is ICP and why does it cause itching?
INTRAHEPATIC CHOLESTASIS OF PREGNANCY (ICP) — pregnancy-specific liver condition. Bile acids (made by liver to help digest fat) BUILD UP in the bloodstream instead of being properly excreted. The bile acids in your skin cause INTENSE ITCHING (called pruritus). USUALLY palms + soles of feet first; can spread. WORSE AT NIGHT. NO RASH (just scratch marks). Affects ~1 in 140 pregnancies UK; higher in South Asian / Scandinavian / Hispanic women, family history. RESOLVES within days-weeks after birth.
Is itchy palms in pregnancy serious?
POTENTIALLY YES — get blood tests. UK NHS: itchy palms / soles in pregnancy + no rash should prompt SAME-DAY blood test for ICP. ICP IS THE 'red flag' diagnosis. WHY: untreated severe ICP linked to stillbirth (especially with bile acids ≥100 µmol/L from 35+ weeks). MANY itches are benign (dry skin, eczema, normal pregnancy itch). BLOOD TEST CHEAP AND QUICK — bile acids + liver enzymes (ALT). DON'T wait. TYPICAL onset: 3rd trimester (28+ weeks) but possible earlier. ITCHY HANDS / FEET particularly characteristic.
How is ICP diagnosed?
BLOOD TEST: (1) TOTAL BILE ACIDS — random / non-fasting; >10 µmol/L = diagnostic; (2) LIVER FUNCTION TESTS — ALT, GGT may also be raised. ITCHING + bile acids >10 = ICP confirmed. SCREEN ALSO for OTHER causes if: very early onset (<24 weeks); markedly raised bile acids (>200); jaundice (yellow eyes/skin); severely raised liver enzymes (>5x normal); family history of liver disease. EXCLUDE: viral hepatitis (A, B, C, E), autoimmune hepatitis, biliary obstruction, drug-induced liver issues.
What's the stillbirth risk with ICP?
RISK CORRELATES with PEAK BILE ACID LEVEL: BELOW 40 µmol/L: stillbirth risk ~same as background (~3 per 1000); 40-99 µmol/L: slightly raised, mainly from 35+ weeks; ≥100 µmol/L: SHARPLY raised from 35 weeks onward — research suggests ~3% stillbirth risk if untreated. EVIDENCE: Ovadia 2019 Lancet IPD meta-analysis (5,557 women) established this gradient. RISK MANAGEABLE with appropriate care: monitoring + delivery timing + treatment. MOST babies born to ICP mothers: HEALTHY.
What treatment do I get?
(1) URSODEOXYCHOLIC ACID (UDCA / Urso) — first-line, evidence-based; reduces itching, improves liver enzymes, may improve outcomes. NHS prescribed. Doses 500 mg-1500 mg/day. (2) ANTIHISTAMINES — chlorphenamine (Piriton) at night; helps sleep with itching. (3) ITCH RELIEF: cool baths, cold compresses, calamine lotion, gentle moisturisers, cotton clothing, fan / cool room. (4) DELIVERY PLANNING: 37-38 weeks for moderate-severe ICP (bile acids 40-99); 35-37 weeks if very severe (bile acids ≥100); 39-40 weeks for mild. (5) WEEKLY blood tests monitoring.
Does Urso actually work?
EVIDENCE MIXED. Helps ITCH and LIVER ENZYMES improve. PITCHES trial (Chappell 2019 Lancet) showed NO clear stillbirth reduction. LATER meta-analyses (Ovadia 2021) suggested benefit in subgroups. UK / RCOG STANDARD treatment despite. Most women report symptom improvement within days-week. NOT MAGIC — itching may persist; bile acids may still rise. PERSISTENT severe symptoms despite Urso: discuss escalation, earlier delivery. SAFE in pregnancy + breastfeeding.
Will I be induced early?
OFTEN YES. NICE / RCOG: delivery TIMING based on PEAK BILE ACID levels: SEVERE ICP (≥100): 35-37 weeks; MODERATE (40-99): 37-38 weeks; MILD (10-39): 39-40 weeks. SPONTANEOUS LABOUR before induction date possible. INDUCTION usually offered; planned C-section if other indication. CONTINUOUS CTG in labour; usually no contraindication to vaginal birth. ANTENATAL STEROIDS if delivery <36 weeks for baby's lungs. NEONATAL TEAM AWARE; baby usually well unless very preterm.
Will my baby be safe?
USUALLY YES with management. RISKS include: (1) PRETERM BIRTH (~10-25% — often planned for safety); (2) MECONIUM-stained waters (more common); (3) NEONATAL respiratory distress; (4) RARELY stillbirth — main concern, related to bile acid level. MONITORING: regular CTG, growth scans, planned delivery. NICU stay possible if very preterm or breathing issues. POSITIVE OUTCOMES for vast majority. Each week of monitoring + treatment reduces risk.
Will ICP affect breastfeeding?
USUALLY NO. URSODEOXYCHOLIC ACID safe in breastfeeding. ITCHING typically resolves within days-weeks after delivery. NO LONG-TERM liver impact for most women. SOME residual fatigue. CAN exclusively breastfeed normally. MILK SUPPLY can be affected if very stressful pregnancy / preterm delivery / NICU stay; lactation consultant support if needed. EARLY skin-to-skin + frequent feeding helps establishment.
Will I get ICP next pregnancy?
HIGHLY LIKELY ~70-80% recurrence. PRECONCEPTION: discuss with GP; some prefer Urso prophylactically (rare practice); be aware of itching from 20+ weeks. EARLY blood tests at 24-26 weeks for bile acids if symptoms. PLAN MORE INTENSIVE monitoring. NOT YOUR FAULT — genetic predisposition. POSITIVE: knowing you have it means you can act fast next time. WEIGHING NEXT PREGNANCY: emotional + practical considerations.
Are there other types of liver problems in pregnancy?
DIFFERENTIAL: (1) PRE-ECLAMPSIA — high BP + protein + raised liver enzymes; (2) HELLP SYNDROME — severe variant of PE; (3) ACUTE FATTY LIVER OF PREGNANCY (AFLP) — rare, severe, third trimester; (4) HEPATITIS (viral A/B/C/E); (5) AUTOIMMUNE HEPATITIS; (6) GALLSTONES (more common in pregnancy); (7) DRUG-INDUCED. WORKUP if ICP doesn't fit pattern (very early, jaundice, very high enzymes, family history of liver disease).
Are there long-term consequences for me?
USUALLY NONE. LIVER RECOVERS fully postpartum. ICP IS NOT associated with chronic liver disease (unlike some other liver conditions). HOWEVER: increased lifetime risk of HEPATOBILIARY disease (gallstones, hepatitis C, NAFLD); HEPATITIS C screening recommended if not already; some studies suggest increased cardiovascular risk later in life. ANNUAL CHECK-UP useful. NEXT PREGNANCY: ICP recurrence likely; plan accordingly.
Can I avoid ICP by lifestyle?
NO — ICP is genetic + hormonal, not lifestyle. NOT caused by: diet, exercise, alcohol, stress, body weight. ALCOHOL: avoid in pregnancy anyway (also irritates liver). SAFE FOODS during ICP: balanced diet OK. AVOID: paracetamol overuse (liver metabolises), unnecessary supplements. STAY HYDRATED. SOME women find caffeine worsens itch; varies.
How do I cope with severe itch?
DIFFICULT. STRATEGIES: (1) COOL temperatures — air conditioning, fan, cold bedroom; (2) COOL BATHS with oatmeal or sodium bicarbonate; (3) COLD COMPRESSES on itchy areas; (4) ICE PACKS wrapped in cloth on palms / soles; (5) COTTON GLOVES for nighttime to prevent scratching damage; (6) DISTRACTION — TV, audiobooks; (7) ANTIHISTAMINES (Piriton) at bedtime for sleep; (8) GENTLE moisturiser (avoid heavily perfumed); (9) UDCA usually starts working within 1-2 weeks. PSYCHOLOGICAL impact — sleep deprivation, frustration. MENTAL HEALTH support if struggling.
What if my partner doesn't take it seriously?
ICP is INVISIBLE — no rash, can look fine. EXPLAIN: liver condition; can affect baby; needs monitoring; itching is debilitating; sleep deprivation real. POINT TO RESOURCES: NHS ICP page, ICP Support charity (UK), Sands. SHOWING partner the blood test results helps. BRING partner to consultant appointment. ICP IS a real medical condition — don't let dismissive responses delay seeking help.
How does this relate to other calculators on BumpBites?
Companion: /calculators/preeclampsia-diagnosis (overlap of liver findings); /calculators/hellp-classifier (severe variant); /calculators/pregnancy-symptom-check; /calculators/aspirin-pe-prevention; /calculators/antenatal-steroids (if delivery preterm); /calculators/fetal-weight; /calculators/kick-counter; /calculators/pregnancy-palpitations.