Baby Acne: Why Newborns Get Little Red Bumps (and What to Do About Them)

Your baby's face was smooth for a week or two, and now the cheeks are covered in small red bumps. It shows up in every third photo. It looks worse when they cry. And you have started to wonder whether it is something you ate, something in the laundry, or a reaction to the wipes.

It is almost certainly none of those. It is baby acne, it is extremely common, and it will go away on its own. The American Academy of Dermatology says about 20 percent of newborns get it, and the American Academy of Pediatrics puts the number at more than 30 percent — so if your baby has it, you are looking at something that a fifth to a third of newborns walk out of the hospital destined to develop. Here is what it is, why it happens, what to actually do about it, and — just as important — the small list of well-meaning things that make it worse.

01What baby acne actually is

Baby acne is a short-lived skin condition of the newborn weeks. Cleveland Clinic describes it as "a common and short-term skin condition that causes acne breakouts to form on your baby's face or chest." The AAP is more concrete about what it looks like: "small red bumps," sometimes with a white center.

It typically appears at 2 to 4 weeks of age, per the AAP, and the AAD adds that it can develop "any time before 6 weeks of age." You will usually see it on the cheeks and nose. The AAD notes it can also show up "on a baby's forehead, chin, scalp, neck, back, or chest" — but the face is by far the most common.

One useful thing to know before you Google an image: baby acne does not come with blackheads. Cleveland Clinic is explicit about it — a newborn with baby acne "won't have blackheads." If you are seeing blackheads on your baby, the bumps are something else and it is worth a call to the pediatrician.

02Why it happens (and why it is not your fault)

The short answer is hormones — yours, not theirs. The AAP puts it simply: "The cause appears to be the transfer of maternal hormones just prior to birth." Your baby spent nine months bathed in your hormones, some of those hormones stimulate the oil glands in their skin, and it takes a few weeks after birth for the effect to fade.

Cleveland Clinic adds a bit more nuance: the exact mechanism is not fully understood, but "hormones in the placenta can affect how your baby's skin produces sebum," which clogs the tiny pores on a newborn's face. Breastfeeding may transfer a small amount of maternal hormones and contribute at the margin, but this is not a reason to stop nursing — the acne is temporary and harmless, and the benefits of breastfeeding are not.

What baby acne is not caused by, based on every source we fetched: something you ate, your detergent, your body wash, your baby's formula, your baby's wipes, the room being too warm, or anything you did or didn't do. It is a normal physiological event of the newborn weeks.

03What to actually do about it

Almost nothing. That is the answer, and it is a hard one for the modern parent brain to accept. The AAP writes it in one sentence: "Since it goes away on its own, no treatment is needed."

But "do almost nothing" is not the same as "do literally nothing." A few gentle habits keep the skin comfortable while it clears.

04Baby acne, milia, or eczema? How to tell them apart

Two other very common newborn bumps get mistaken for baby acne, because all three show up on the face in the first weeks. Being able to tell them apart saves you a worried Google spiral at 2 a.m.

• Milia are tiny white cysts, most often on the nose. Cleveland Clinic describes them as "small, white cysts on your skin" of "trapped dead skin cells," and notes that "about 40% to 50% of U.S. newborns have milia." Unlike baby acne, milia are "present at birth," not red, not inflamed, and also require no treatment — "in babies, milia usually last for a few weeks after they're born."
• Baby acne is red or purple bumps, sometimes with a pus-filled center, appearing around 2 weeks of age — not at birth. Cleveland Clinic: "small, red to purple bumps that are swollen," and "bumps that contain pus, surrounded by a red to purple or dark brown ring."
• Eczema is dry, flaky, itchy patches of skin, often on the cheeks, scalp, or in the creases of the elbows and knees. It looks and feels different — dry rather than pimply — and unlike baby acne, it usually needs treatment (a gentle moisturizer, and sometimes a prescription). If the bumps come with dry, scaly, or clearly itchy skin, mention it to your pediatrician.

05When it is not baby acne: the 6-week rule

The single most important thing to know about baby acne is a rule of timing. If the acne first appears after 6 weeks of age, it is a different condition, and the guidance changes.

The AAD calls this second condition infantile acne, and it usually shows up "between 3 and 6 months of age." It looks similar but behaves differently: "While newborn acne rarely causes a scar, infantile acne can cause permanent acne scars." It also lasts longer — "clearing usually takes about 6 months to 1 year," and sometimes more. For that reason the AAD recommends seeing a board-certified dermatologist or pediatric dermatologist, both to confirm what it is and to prevent scarring.

The rule of thumb is simple: bumps appearing before 6 weeks, on the face, that fit the description above — that is almost always baby acne, and it needs almost nothing. Bumps appearing after 6 weeks — call the pediatrician and ask about a dermatology referral.

06When to call the pediatrician about baby acne

Baby acne itself is not a reason to call. But the things that can go along with it, or that can look like it, sometimes are. Cleveland Clinic says to contact your provider if your baby's acne "doesn't clear up after a few weeks" or if you also see "blisters, peeling skin, fussiness, a fever or feeding difficulties." Nationwide Children's flags "increasing redness, swelling, tenderness or drainage" — signs a bump has become infected, usually from scratching.

In plain words: a call is warranted if the skin is getting worse instead of better, if it is spreading beyond the face and looks different from what we described, if your baby has a fever alongside it, or if a bump is oozing. And any newborn under 3 months old with a fever of 100.4°F (38°C) or higher gets called in — that is not about the acne, but it is worth knowing. Our fever guide covers the exact temperature rules.

07The photo you take anyway

The last thing worth saying is a gentle one. Baby acne peaks somewhere between three and eight weeks — right in the middle of the newborn-photo season, when family is visiting and everyone wants a picture. In a few weeks the skin will be smooth again and you will forget it happened. Take the photos anyway. It is a marker of the newborn weeks, not a flaw in the baby.

For the rest of the small, common, briefly worrying newborn things — the peeling skin, the sneezing, the crossed eyes, the sudden stuff on the scalp — our newborn basics guide walks through each one the same way this page does: what it is, what to do, and when to call. And if the bumps you are looking at seem more like scaly flakes on the scalp than pimples on the face, that is cradle cap, which is a different (and equally harmless) newborn thing.

Questions parents actually ask

Newborn Weeks is planning help, not medical advice — always follow your own doctor, midwife, or pediatrician.