That bald patch on the back of your baby’s head is almost certainly normal, and in most cases, you can’t fully prevent it. Recent research shows that neonatal occipital alopecia, the technical name for this common bald spot, is a physiological process that begins before birth, not something caused by your baby rubbing their head on the mattress. The hair your baby was born with goes through a synchronized shedding phase, peaking around 3 months of age, and the back of the head tends to shed last and most noticeably. Permanent hair typically grows in between 6 and 12 months.
That said, friction from sleeping surfaces can make the bald spot look more pronounced, and reducing pressure on one area of the head is still worthwhile for other reasons, including preventing flat spots on the skull. Here’s what actually helps.
Why the Bald Spot Happens
For decades, parents and even pediatricians assumed the bald spot came from babies rubbing their heads against crib sheets. It made intuitive sense. But a closer look at the evidence tells a different story. Researchers compared rates of occipital hair loss before and after the American Academy of Pediatrics began recommending back sleeping in the 1990s and found no significant correlation between sleeping position and the bald spot’s occurrence. Babies who slept on their stomachs got the same bald patches.
What’s actually happening is a natural hair cycle. The fine hair babies grow in the womb (called lanugo and then vellus hair) enters a resting phase while still in utero. After birth, those resting hairs fall out in a wave, similar to how many new mothers lose hair around the same time. The back of the head is simply where this synchronized shedding is most visible. Friction may speed up the loss of hairs that were already on their way out, but it’s not the root cause.
Practical Ways to Reduce Hair Loss and Pressure
Even though the shedding is largely unavoidable, minimizing friction and redistributing pressure across your baby’s skull has real benefits. It can make the bald spot less dramatic and, more importantly, helps prevent positional flattening of the skull.
Increase Tummy Time
Every minute your baby spends on their stomach is a minute without pressure on the back of the head. Most babies can start tummy time a day or two after birth with short sessions of 3 to 5 minutes, two or three times a day. By around 2 months, aim for 15 to 30 minutes of total tummy time daily, spread across multiple sessions. Tummy time also builds the neck and shoulder strength your baby needs for rolling, sitting, and crawling.
Alternate Head Position in the Crib
Babies naturally turn their heads toward light, sound, or activity in the room. You can use this to your advantage. One day, place your baby with their head at the top of the crib. The next day, flip their orientation so their head is at the foot. This encourages them to turn toward different sides, spreading out where pressure falls on the back of the skull. Always keep your baby on their back for sleep. The goal is simply to vary which direction they look while sleeping in that position.
Switch Arms During Feeding and Carrying
If you tend to hold your baby on one side while feeding or carrying, the same spot on their head presses against your arm every time. Alternating sides distributes the pressure more evenly. This is a small change that adds up over the hundreds of hours you spend holding your baby in the first few months.
Limit Time in Car Seats and Bouncers
Car seats, bouncers, swings, and infant rockers all press against the same area on the back of the head. These “containers” are sometimes necessary, especially during car travel, but keeping your baby in them beyond their intended purpose adds hours of unnecessary pressure. When you’re at home, holding your baby upright, using a carrier, or doing tummy time on the floor are better alternatives.
What Not to Do
You may come across suggestions to use silk pillowcases, special crib sheets, or head-shaping pillows. The AAP’s safe sleep guidelines are clear: the crib should have a firm, flat mattress with a fitted sheet and nothing else. No loose blankets, no pillows, no stuffed items, no specialty fabrics layered on top. Positioning pillows marketed for preventing bald spots or flat heads are not considered safe for unsupervised sleep and can pose a suffocation risk.
Shampoo also doesn’t cause or worsen infant hair loss. You don’t need to stop bathing your baby’s head or switch to a special product.
When the Bald Spot Could Signal Something Else
The vast majority of infant bald spots are completely benign and resolve on their own as permanent hair grows in. But a few signs point to something worth a closer look. If you notice scaly, greasy, or flaky patches on the scalp, your baby may have seborrheic dermatitis (cradle cap), which is common and treatable but different from normal shedding. Redness, swelling, or skin that looks irritated could suggest a different skin condition.
A bald patch with very sharply defined borders and short broken hairs, sometimes called “exclamation mark” hairs, can indicate alopecia areata, an autoimmune condition that’s rare in infants but does occur. And if the hair loss appears in an unusual location, like only on one temple, or if a patch persists well past the first birthday without any regrowth, that’s also worth mentioning to your pediatrician.
The Regrowth Timeline
For most babies, the bald spot is a temporary phase measured in months, not years. Hair loss typically peaks around 3 months of age, then permanent hair begins growing in between 6 and 12 months. The new hair may look completely different from what your baby was born with. Color, texture, and thickness can all change. Some babies who were born with dark hair grow in blonde, and vice versa. By their first birthday, most children have a full head of new hair, though the rate varies widely from one baby to the next.