Mild and moderate steroid creams are generally safe to use during pregnancy. The amount of medication that actually reaches your bloodstream through the skin is small, typically between 0.7% and 7% on intact skin, and only a fraction of that crosses the placenta. The main concern is with stronger formulations used in large amounts, which have been linked to lower birth weight.
Why Potency Matters Most
Topical steroids come in four potency classes: mild, moderate, potent, and very potent. Mild options like hydrocortisone 1% sit at the lowest end. Potent and very potent creams, often prescribed for stubborn psoriasis or severe eczema flares, deliver significantly more active ingredient into the skin and bloodstream.
A large study found that pregnant women who used potent or very potent topical steroids shortly before or during pregnancy had roughly double the risk of fetal growth restriction compared to women who used milder formulations. That’s a meaningful difference. Mild and moderate creams showed no such association. This makes the strength of your prescription the single most important safety factor.
Not all steroid compounds behave the same way at the placenta, either. Your body has a natural enzyme in the placenta that breaks down certain steroids before they reach the baby. Hydrocortisone and prednisolone are heavily metabolized by this enzyme, so only 10% to 15% passes through. Betamethasone and dexamethasone, found in some stronger creams, are far less affected by this protective barrier. Around 30% of betamethasone and up to 67% of dexamethasone crosses through to the fetus.
Where You Apply It Changes Absorption
The body doesn’t absorb steroid cream evenly. Applied to the forearm, only about 1% is absorbed into the bloodstream. But thin-skinned areas like the eyelids, face, neck, armpits, and groin absorb considerably more. If you’re treating eczema in a skin fold or on your face, that higher absorption rate is worth factoring in.
Inflamed skin also absorbs far more than healthy skin. One study found that absorption of hydrocortisone cream during an active eczema flare was 11 to 31 times higher than during remission. This is worth keeping in mind: the very reason you’re reaching for the cream (red, irritated, broken skin) is also the condition that lets more of it through.
No Clear Link to Birth Defects
While systemic corticosteroids (pills or injections) have been loosely associated with orofacial clefts in some older studies, research on topical steroids has not established a connection to birth defects. The amounts absorbed through the skin are simply too small to produce the same systemic effects as oral steroids. The one risk that does show up consistently in the data is fetal growth restriction, and that association is limited to potent and very potent formulations used in significant quantities.
Practical Ways to Minimize Risk
The safest approach is to use the mildest cream that controls your symptoms and apply it to the smallest area necessary. A thin layer applied once or twice daily to a localized patch of eczema or dermatitis poses very little risk. Avoid using potent creams over large areas of skin or for prolonged stretches without medical guidance.
Keeping a strong moisturizing routine can reduce how often you need steroid cream in the first place. Emollients with a high lipid content, applied at least once daily, help maintain the skin barrier and can significantly cut down on flares. When your skin barrier is intact, you need less steroid cream, and the cream you do use is absorbed at a much lower rate.
Topical calcineurin inhibitors, a non-steroid class of anti-inflammatory cream, are another option. These are considered safe in pregnancy with limited systemic absorption and can be used on sensitive areas like the face where you might prefer to avoid steroids altogether.
What This Means in Practice
If you’ve been using a mild hydrocortisone cream for a small rash or eczema patch, the evidence is reassuring. The absorption is minimal, the placenta filters most of it, and studies have not found adverse outcomes at these potency levels. If you’re on a potent or very potent prescription, that’s the conversation to have with your prescriber. They may be able to step you down to a milder formulation or combine a lower-potency cream with better moisturizing habits to keep your skin under control without the added risk. Leaving eczema or dermatitis completely untreated isn’t ideal either, since chronic inflammation, broken skin, and sleep disruption from itching all carry their own costs during pregnancy.