Yes. Pregnancy can cause or trigger a skin rash because hormonal changes, stretching skin, sweat and friction can make skin dry, itchy or irritated. Some people also develop pregnancy-related rashes, such as itchy bumps that begin around stretch marks, while eczema may flare. Most pregnancy rashes are not dangerous, but a new rash or strong itching should be discussed with your maternity care team, since some conditions need prompt assessment.
Why can pregnancy cause a skin rash?
Pregnancy brings changes that can affect the skin's moisture, sensitivity and appearance. As the abdomen grows, the skin stretches, and increased sweating or friction can irritate areas where skin folds or clothing rubs. Hormonal changes may also make the skin drier or more sensitive to products that previously caused no problems.
According to Cleveland Clinic, pregnancy can contribute to skin irritation and may cause existing skin conditions to flare. However, not every rash during pregnancy is caused by pregnancy itself. Everyday problems, including allergic reactions, heat rash, hives and skin infections, can also occur during this time.
Depending on the cause, a person may notice experiences such as:
- Itching, dryness or a tight feeling in the skin.
- Small raised bumps or larger, hive-like patches.
- Dry, scaly or irritated areas, sometimes with redness or darker discoloration.
- Skin irritation where clothing rubs, sweat collects or the abdomen stretches.
- Marks caused by scratching itchy skin.
These symptoms can occur with different skin conditions, so their appearance alone cannot establish the cause.
Which skin conditions can develop or worsen during pregnancy?
Pregnancy-related itchy rash around stretch marks
One pregnancy-specific condition is called pruritic urticarial papules and plaques of pregnancy, commonly known as PUPPP. It causes itchy, raised bumps that often begin within stretch marks on the abdomen. The bumps may form larger patches and spread to the thighs, buttocks, breasts or arms.
According to Cleveland Clinic, PUPPP typically appears late in pregnancy, often during the third trimester, although it can occasionally begin shortly after delivery. Its exact cause is not fully understood. The condition is generally not harmful to the pregnant person or baby, and the rash usually goes away after childbirth. A healthcare professional should assess a new itchy rash to determine whether it fits this pattern or needs a different approach.
Eczema that appears or flares during pregnancy
Eczema, also called atopic dermatitis, can develop for the first time or become more active during pregnancy. It often causes dry, itchy, inflamed or scaly areas of skin. Changes in skin sensitivity may contribute to symptoms, and familiar irritants such as fragranced soaps or lotions can make discomfort worse.
The American Academy of Dermatology explains that pregnancy can trigger eczema or worsen existing symptoms. Fragrance-free moisturizers are an important part of skin care, but medication choices may need to be reviewed because some eczema treatments are not suitable during pregnancy. A dermatologist and obstetrician can help select an appropriate treatment plan.
Contact reactions, heat rash and other common skin problems
Not all pregnancy-associated rashes are specific to pregnancy. Contact dermatitis can develop after exposure to an irritating substance or an allergen, such as a new body lotion, detergent or soap. Heat rash may occur when sweat becomes trapped, while hives can appear as raised, itchy patches. These conditions may happen during pregnancy for the same general reasons they occur at other times.
Consider whether a new skin product, detergent or other exposure coincided with the rash. Stopping a suspected nonessential irritant may help, but do not assume that removing a product will resolve every rash. Persistent, spreading or unexplained symptoms deserve professional assessment.
Can pregnancy cause itching without a visible rash?
Yes. Pregnancy can cause itching even when the skin has no obvious rash. Skin stretching and dryness are common explanations, but intense itching can sometimes be a sign of intrahepatic cholestasis of pregnancy, also called ICP. This is a liver condition that affects the flow of bile during pregnancy and can have implications for the baby.
The NHS advises urgent medical assessment for very itchy skin during pregnancy, especially when the itching affects the palms of the hands or soles of the feet or becomes worse at night. These symptoms need attention even if there is no obvious rash. Contact your maternity unit or pregnancy care professional promptly rather than waiting for a skin change to appear.
Cleveland Clinic explains that suspected cholestasis is assessed through a clinical examination and blood tests, including tests of liver function and bile acid levels. If this condition is confirmed, the maternity team may arrange treatment and closer monitoring. It is important to distinguish this cause of itching from a rash that primarily affects the skin.
When should you contact a healthcare professional?
Let your midwife, obstetrician or other pregnancy care professional know about a new rash, particularly if it is persistent, getting worse, unusually uncomfortable or interfering with sleep and daily activities. Assessment is also appropriate when the rash develops blisters, looks unusual or occurs alongside other symptoms that concern you.
Seek urgent medical advice if you have intense itching without a clear rash, especially on your palms or soles or when it is worse at night. Do not wait for a routine appointment if these warning signs occur. Difficulty breathing or sudden swelling of the lips, tongue or throat requires emergency medical care.
To assess a rash, a healthcare professional may ask when it began, where it first appeared, how it has changed and whether you have used new skin products or medicines. They may examine the affected areas and recommend additional tests if your symptoms suggest a condition that needs investigation. The timing of the rash and its pattern can help guide the assessment, but no single feature is enough to establish the cause.
How can you soothe an itchy pregnancy rash safely?
Simple skin care measures may ease irritation while you arrange appropriate advice. Helpful steps include:
- Use fragrance-free moisturizers. Apply a gentle cream or ointment regularly to help reduce dryness and protect the skin.
- Choose cool or lukewarm showers. Hot water may worsen itching. A cool compress may also provide temporary relief.
- Wear loose, breathable clothing. Soft fabrics such as cotton can reduce rubbing and help keep the skin comfortable.
- Limit exposure to potential irritants. Avoid fragranced soaps, lotions and other products that appear to worsen your symptoms.
- Avoid scratching where possible. Gently pat or press the itchy area instead, and keep your nails short to reduce skin damage.
These measures may help with discomfort, but they do not treat every possible cause of a rash. If symptoms persist or worsen, seek medical advice rather than continuing home care alone.
Check with your maternity care professional or pharmacist before using anti-itch creams, steroid creams, antihistamines or herbal products during pregnancy. Some treatments can be used safely, but the right choice depends on the product, how it is used, the stage of pregnancy and the condition being treated. Do not start, stop or change a prescribed medicine without discussing it with the clinician responsible for your care.
Will a pregnancy rash disappear after childbirth?
Many pregnancy-related rashes improve after delivery, although the time needed for symptoms to settle depends on the underlying cause. PUPPP, for example, usually resolves within days to a few weeks after birth. Eczema may improve, persist or change over time, so it may still need treatment after pregnancy.
The most useful next step is to identify what is causing the symptoms and choose care that is appropriate for both you and your baby. Most pregnancy-associated skin changes are manageable, but prompt assessment of unusual rashes or significant itching helps ensure that conditions requiring additional care are not overlooked.