Can Pregnancy Trigger Psoriasis? Signs, Causes, and What to Do

The Unexpected Rash

Emily was glowing through most of her pregnancy—until her third trimester. A dry, red patch showed up on her elbow. Then another on her knee. At first, she thought it was just dry skin or maybe a pregnancy-related rash. But the patches grew, became scaly, and started to itch. Her OB referred her to a dermatologist, who gave her a diagnosis she never expected: psoriasis.

"I’ve never had skin issues in my life. Why now?"

If you’re noticing scaly, red patches for the first time during pregnancy, you might be wondering: Can pregnancy trigger psoriasis? This guide explores what we know about new-onset psoriasis during pregnancy, how to recognize it, and what steps to take if you think it’s happening to you.

Disclaimer: This article is for educational purposes only. It is not a substitute for medical advice, diagnosis, or treatment. Always consult your healthcare provider or dermatologist for proper care. This guide is intended to support informed conversations with your doctor.

Can Pregnancy Trigger Psoriasis?

While it’s more common for psoriasis to appear earlier in life, yes, pregnancy can sometimes trigger psoriasis for the first time. Although rare, there are documented cases of new-onset psoriasis during pregnancy or in the postpartum period.

Psoriasis is a chronic autoimmune condition where the immune system causes skin cells to build up too quickly, leading to scaling, redness, and inflammation. For some women, the massive hormonal and immune changes that occur during pregnancy can act as a trigger.

Pregnancy alters the immune system to protect the developing fetus, often shifting the balance of inflammatory signals in the body. This shift may, in some people, activate dormant psoriasis genes or push the immune system into overdrive.

It’s also possible that psoriasis was always in your system and pregnancy simply uncovered it.

What Does New-Onset Psoriasis Look Like During Pregnancy?

The symptoms of psoriasis can be easy to mistake for other common pregnancy skin conditions. Here are the typical signs:

• Red, inflamed patches of skin with a silvery or white scale

• Itching or burning sensations

• Flaky scalp, especially near the hairline or behind the ears

• Cracked skin that may bleed in severe cases

• Thickened, discolored nails (less common but possible)

Psoriasis most commonly appears on the:

• Elbows

• Knees

• Lower back

• Scalp

During pregnancy, some women notice flare-ups in areas where skin stretches or rubs—like the belly or under the breasts.

If you’re seeing skin changes that don’t look like the usual dry patches or stretch marks, it’s worth consulting a dermatologist. Early diagnosis can make treatment easier and help you avoid unnecessary discomfort.

Why Hormonal Changes Might Be a Trigger

Hormones play a huge role in pregnancy—and they also affect how the immune system behaves. Here’s how:

• Estrogen and progesterone rise steadily during pregnancy, altering how the immune system responds to inflammation.

• These hormonal changes modulate cytokine activity, which may trigger or suppress autoimmune diseases like psoriasis.

• After childbirth, hormone levels drop rapidly, which can cause the immune system to rebound or overreact.

This hormonal rollercoaster can create the perfect storm for psoriasis to develop in someone who is already genetically predisposed.

Other Contributing Factors

While hormones are a big part of the puzzle, other factors may also contribute to new-onset psoriasis during pregnancy:

1. Genetics

If you have a family history of psoriasis (even if it's distant), you may be more likely to develop it. Pregnancy can be the trigger that "activates" it.

2. Stress

Pregnancy is joyful, but it’s also stressful. Emotional, physical, and hormonal stress can all contribute to immune system dysregulation—a known psoriasis trigger.

3. Changes in Medication or Skincare

Some women stop using certain skincare products or medications during pregnancy. This change could unmask or allow psoriasis symptoms to surface.

4. Skin Trauma (Koebner Phenomenon)

New stretch marks, surgical incisions, or even pressure from clothing can lead to psoriasis patches in those areas.

5. Discontinuation of Hormonal Birth Control

Stopping hormonal contraceptives before pregnancy might also contribute to hormonal imbalance, which could in some cases trigger a flare.

What to Do If You Think You Have Psoriasis During Pregnancy

Step 1: Don’t Self-Diagnose

Psoriasis can look like many other skin conditions common in pregnancy. Get a professional evaluation to be sure.

Step 2: See a Dermatologist

Your OB may refer you, or you can request a consult yourself. A dermatologist can determine whether it’s psoriasis or another issue, such as:

• Eczema

• PUPPP (pruritic urticarial papules and plaques of pregnancy)

• Atopic dermatitis

• Fungal infections

Step 3: Review Safe Treatment Options

If diagnosed, your provider will recommend treatments that are safe for pregnancy. This may include:

• Moisturizers and emollients

• Low-potency topical corticosteroids

• Narrowband UVB phototherapy

Avoid over-the-counter psoriasis products unless approved by your provider. Ingredients like salicylic acid and coal tar may not be safe during pregnancy.

Step 4: Adopt a Gentle Skincare Routine

• Use mild, fragrance-free cleansers

• Moisturize twice daily

• Avoid hot showers and tight clothing

Is It Psoriasis or Something Else?

Many skin conditions can pop up during pregnancy. Here’s a quick comparison:

If you’re unsure, don’t guess. A dermatologist can help differentiate between them.

Final Thoughts: Diagnosis Is Empowering

Getting diagnosed with psoriasis for the first time during pregnancy can be scary. But it doesn’t mean you did something wrong. Psoriasis is an autoimmune condition, not a result of poor hygiene, diet, or skincare.

The sooner you get a proper diagnosis; the sooner you can find relief—and the better you’ll feel both physically and emotionally.

Emily, the mom we met earlier, was able to manage her symptoms with a combination of light therapy, gentle moisturizers, and support from her care team. Most importantly, she felt empowered to take control of her skin’s health while preparing to welcome her baby.

You can, too.

This article is intended as an educational guide to help you understand new-onset psoriasis during pregnancy and prepare for a conversation with your doctor. Always consult your healthcare provider for personalized treatment.

Looking for gentle, herbal-based support for psoriasis symptoms? Visit www.nopsor-usa.com to learn more.

References

1. National Psoriasis Foundation – Pregnancy and Breastfeeding
   Offers information about psoriasis during pregnancy, new symptoms, and treatment guidance.
   🔗 https://www.psoriasis.org/pregnancy-and-breastfeeding/ 

2. La Leche League International – Psoriasis and Breastfeeding
   While focused on breastfeeding, this article includes firsthand accounts and psoriasis-related skin changes during and after pregnancy.
   🔗 https://llli.org/news/psoriasis-and-breastfeeding/