Baby acne typically lasts a few weeks to a few months and clears up on its own without treatment. It most often appears 2 to 4 weeks after birth, and in most cases it resolves completely by the time a baby is 3 to 4 months old. While the bumps can look alarming to new parents, baby acne is harmless and rarely leaves any scarring.
When Baby Acne Appears and How Long It Stays
Most babies develop acne between 2 and 4 weeks of age. It shows up as small red bumps or pustules, usually on the cheeks, forehead, chin, and sometimes the scalp. The breakout can look worse before it gets better, especially when your baby is fussy, warm, or their skin is irritated by spit-up or rough fabric.
For the majority of newborns, the acne clears within a few weeks of appearing. Some cases stick around for two or three months. Rarely, it can persist up to six months. The timeline varies from baby to baby, but the pattern is consistent: it shows up in the first month, peaks, and then fades gradually without leaving marks.
What Causes It
The exact cause isn’t fully settled, but the leading explanation involves hormones that pass from mother to baby during pregnancy and delivery. These hormones can stimulate the baby’s oil glands, which are still immature, leading to clogged pores and the characteristic red bumps. Some researchers also point to a type of yeast that naturally lives on skin as a contributing factor, which is why some pediatric dermatologists consider baby acne and a related condition called neonatal cephalic pustulosis to be closely linked or even the same thing.
Whatever the underlying trigger, the condition resolves as those maternal hormones clear the baby’s system and the skin matures.
How to Care for Your Baby’s Skin
No special treatment is needed in most cases. The goal is simply to keep the skin clean and avoid anything that could make the breakout worse.
- Wash daily with warm water. Gently clean your baby’s face once a day. You don’t need soap, but if you use one, choose a mild, fragrance-free option.
- Skip lotions, oils, and ointments. These can clog pores and make the acne more noticeable. Greasy skincare products are the most common aggravator.
- Don’t scrub or pick. The bumps aren’t caused by dirt, and scrubbing irritates sensitive newborn skin. Let them resolve naturally.
- Pat dry gently. After washing, use a soft cloth and pat rather than rub.
Over-the-counter acne products designed for teens or adults are too harsh for a newborn’s skin. Don’t use them unless a pediatrician specifically recommends something.
Baby Acne vs. Milia
Parents sometimes confuse baby acne with milia, but they’re different conditions with different appearances and timelines. Milia are tiny white or yellowish bumps, usually clustered on and around the nose. They’re caused by small cysts of dead skin trapped just below the surface. Milia are present at birth, while baby acne doesn’t appear until about two weeks later.
The color is the easiest way to tell them apart: milia are white, and baby acne is red with occasional white or yellow centers. Milia also tend to resolve faster, typically disappearing within a few weeks of birth. Neither condition requires treatment.
When the Acne Lasts Longer Than Expected
If your baby’s acne hasn’t cleared by 6 months of age, or if it first appears after 6 weeks, it may be classified as infantile acne rather than the common neonatal type. Infantile acne is less common and can sometimes involve deeper, more inflamed bumps. In rare cases, persistent acne beyond the typical window can signal an underlying hormonal issue that a pediatrician may want to evaluate.
You should also have the skin checked if the bumps look infected, with crusting, oozing, or spreading redness, or if your baby seems bothered by them. A fever alongside a skin rash is always worth a call to your pediatrician, since that pattern can indicate something other than acne entirely.
Will It Leave Scars?
Standard baby acne almost never scars. The bumps are superficial, and newborn skin heals remarkably well. The main risk for scarring comes from picking at the bumps or using harsh products that damage the skin. Left alone, the acne fades completely, and you won’t be able to tell it was ever there.