Day 106 of 280 · 15 weeks + 1 day
Itchy skin
Last reviewed · 3 min read · 5 sources · Plain-text version
Fifteen weeks and one day. About 20 percent of pregnant women feel itchy. Today you build a small kit, and learn the one kind of itch to report.
- Size this week
- about the size of an apple
- Length this week
- around 10.1 cm from head to bottom

Fifteen weeks and one day. If your skin has started to itch, you're in good company, and most of it is ordinary. Today is a small kit and one rule about when to say something.
Your baby

Around 10.1cm long from head to bottom, about the size of an apple (NHS). The baby has developed a soft layer of hair, called lanugo, over the body, and the eyebrows and eyelashes are starting to form (NHS). The lanugo usually disappears before birth; the NHS suggests it may be there for keeping warm (NHS).
Your body
About 20 percent of pregnant women feel itchy during pregnancy, and it typically resolves after delivery (OWH). The NHS's advice for itchy skin is plain: an unperfumed moisturiser, loose cotton clothing, and cool baths; seek advice if it worsens, especially at night (NHS). MedlinePlus adds: avoid perfumed products on itchy skin (MedlinePlus).
Most skin, hair and nail changes in pregnancy are normal and resolve afterward (MedlinePlus). There is one exception worth knowing by name. Persistent itching without a rash should be reported to your provider, because it may indicate cholestasis (MedlinePlus). The rest of today is about making that distinction easy to notice.
Try today
The itch kit
Time: 10 minutes
One unperfumed moisturiser, kept by the bed (NHS).
One loose cotton top for sleeping in (NHS).
A note on your phone with three columns: where it itches, when it's worst, and whether there's a rash. "Worse at night" and "no rash" are the two things a provider will ask about (NHS; MedlinePlus).
Run tonight's bath cooler than you'd like (NHS).
Make it work:If the note fills up with "no rash" and "night", that's the one to report, not the one to moisturise harder (MedlinePlus).
Watch for
Normal
itching; about 20 percent of pregnant women get it (OWH).
Call your provider
for persistent itching without a rash, which may indicate cholestasis (MedlinePlus).
Normal
an itch that comes and goes and eases with moisturiser and cool water (NHS).
Call your provider today
if it worsens, especially at night (NHS).
Normal
brownish patches on the face and a dark line down the lower belly, both from hormone changes (MedlinePlus).
Call your provider
before taking an antihistamine for the itch (MedlinePlus).
For you
The antihistamine in the cupboard is a phone call, not a decision you make alone. MedlinePlus says to talk with your provider before taking one (MedlinePlus), and the CDC's broader advice is to be cautious with online "safe medicine" lists, many of which lack sufficient evidence (CDC). If you want an expert answer fast, the CDC names MotherToBaby, free and confidential, by phone at 1-866-626-6847 (CDC).
For the ordinary kind of itch, the comfort is that it's temporary. Most skin changes in pregnancy resolve afterward (MedlinePlus).
If you're the partner: swap the scented laundry liquid for an unscented one this week without being asked. Nobody will notice except her skin.
Sources
- NHS. "Week 15." Week-by-week guide to pregnancy, Best Start in Life. https://www.nhs.uk/best-start-in-life/pregnancy/week-by-week-guide-to-pregnancy/2nd-trimester/week-15/
- NHS. "Week 21." Week-by-week guide to pregnancy, Best Start in Life. https://www.nhs.uk/best-start-in-life/pregnancy/week-by-week-guide-to-pregnancy/2nd-trimester/week-21/
- Office on Women's Health. "Body changes and discomforts." U.S. Department of Health and Human Services. https://womenshealth.gov/pregnancy/youre-pregnant-now-what/body-changes-and-discomforts
- MedlinePlus. "Skin and hair changes during pregnancy." National Library of Medicine. https://medlineplus.gov/ency/patientinstructions/000611.htm
- Centers for Disease Control and Prevention. "Medicine and Pregnancy: An Overview." https://www.cdc.gov/medicine-and-pregnancy/about/index.html
This guide is general education that summarizes published research and guidance from groups like the American Academy of Pediatrics, the CDC, and the WHO. It isn’t medical advice, and every child develops on their own timeline. Your pediatrician knows your child; if something feels wrong, call them. In an emergency, call 911.
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