Most itching in pregnancy is ordinary: skin stretching over a growing bump, dry skin, hormones. It is annoying and it is not dangerous. But one specific pattern is not ordinary at all, and it is the reason this page exists — because the difference between the two is something you can recognise at home, and recognising it early changes what happens next.
This guide sets out what causes routine pregnancy itching, exactly what the cholestasis pattern looks like, which blood test settles it, and what genuinely relieves the itch while the cause is being checked.
Read this first. Itching that is intense, has no rash, is worse on the palms of your hands and soles of your feet, and is worse at night can be intrahepatic cholestasis of pregnancy. Tell your midwife or maternity unit the same day and ask for a bile acid blood test. Do not wait for your next appointment, and do not wait to see whether it settles.
The Ordinary Kind
Most pregnancy itching has a dull explanation:
- Stretching skin over the abdomen and breasts. Often the first sign that stretch marks are forming, before anything is visible.
- Dry skin, made worse by hot showers and central heating.
- Increased blood flow to the skin, which can make you feel itchy and warm generally.
- Existing conditions such as eczema, which can flare or improve in pregnancy.
This kind responds to moisturiser, cool water and loose clothing. It is not usually worse at night in any dramatic way, and it does not concentrate on your palms and soles.
The Pattern That Matters
| Ordinary itching | Possible cholestasis | |
|---|---|---|
| Rash | Often there is one | Classically none to see |
| Where | Over the bump, breasts, dry patches | Anywhere, but often worst on palms and soles |
| When | Any time, mild | Typically much worse at night |
| Intensity | Irritating | Intense — keeps you awake, you scratch until you break the skin |
| Response to moisturiser | Helps | Barely touches it |
Other things sometimes reported alongside it: dark urine, pale stools, and yellowing of the skin or the whites of the eyes. Any of those with itching is a same-day call regardless of everything else in this table.
If It Is Cholestasis
In intrahepatic cholestasis of pregnancy, bile acids build up in the blood instead of draining from the liver into the gut, and that is what drives the itch. It affects around 1 in 140 pregnant women in the UK, mostly from around 28 weeks. Your skin is examined first, to rule out eczema and other skin conditions, then blood is taken for liver function tests and total bile acids. The RCOG puts the diagnostic line at a peak of 19 micromoles per litre or more, and you do not need to fast for the test.
One normal result does not settle it. Bile acids can rise after the itching starts: the RCOG advises repeating the liver tests and bile acids while the itch persists, because cholestasis can follow up to 15 weeks later. Going back to ask is a recognised part of managing the symptom, not you being difficult.
If the test is positive, the level decides what happens next, and the risk to the baby rises mainly from 100 micromoles per litre. Our guide to cholestasis of pregnancy and bile acid levels explains each band, what the RCOG and other guidelines advise on monitoring and the timing of birth, and has a checker for your own result. Blood tests in pregnancy covers how the rest of the panel fits together.
Relieving the Itch Itself
All of this is for comfort. None of it treats the cause, and none of it is a reason to delay the test.
What helps
- Cool or lukewarm baths and showers
- Unperfumed emollient, kept in the fridge
- Loose cotton clothing, layers you can remove
- A cool bedroom and light bedding
- Keeping nails short, so scratching does less damage
- Hot water — it feels good for a moment and makes it worse
- Perfumed soaps, bubble baths and scented lotions
- Waiting to see whether it settles, if the pattern above fits
At a Glance
Ordinary pregnancy itching is stretched, dry skin and it responds to moisturiser and cool water. Intense itching with no rash, worse on the palms and soles, and worse at night, is the pattern of intrahepatic cholestasis — around 1 in 140 pregnancies, usually from about 28 weeks. It is diagnosed by a bile acid blood test, with a peak of 19 micromoles per litre or more as the RCOG threshold, and it matters because of the risk to the baby, particularly at levels of 100 and over. Tell your midwife the same day, and ask again if the itching continues after a normal result.
Inside Baby Novum. The lab journal keeps each result dated, with the values and a photo of the printout — so a repeat bile acid test sits next to the previous one and the trend is visible rather than remembered.
Next: Cholestasis and Bile Acid Levels → · Blood Tests in Pregnancy → · Stretch Marks → · Third Trimester Guide →
Frequently Asked Questions
Is itching normal in pregnancy?
Mild itching is common and usually comes from skin stretching over the bump and breasts, or from dry skin and raised hormone levels. It is generally worth mentioning but not alarming. Itching that is intense, has no rash and is worse on the palms and soles is a different situation and needs checking.
What does cholestasis itching feel like?
Intense and relentless, often bad enough to keep you awake or make you scratch until the skin breaks. It can be anywhere on the body but is frequently worse on the palms of the hands and the soles of the feet, and it is typically worse at night. Classically there is no rash to see.
My bile acid test was normal but I still itch. What now?
Go back and ask for the test to be repeated. The RCOG advises repeat liver tests and bile acids when the itch persists and nothing else explains it, because cholestasis can develop up to 15 weeks after itching starts with normal results. Meanwhile use the comfort measures on this page, and call the same day if dark urine, pale stools or yellow skin appear.
Can I take antihistamines for itching in pregnancy?
Ask a pharmacist or your doctor first and say you are pregnant. The NHS lists antihistamine tablets among the treatments for itching in pregnancy. For cholestasis, the RCOG mentions chlorphenamine at night, mainly to help you sleep, and notes that loratadine and cetirizine are also used in pregnancy. None of them treats cholestasis, so they never replace the bile acid test.
What can I do about the itching itself?
Cool or lukewarm baths and showers, unperfumed emollients kept in the fridge, loose cotton clothing, and keeping the room cool at night. Avoid hot water, which makes it worse. None of this replaces the blood test — treat the symptom while the cause is being checked.