Newborns scratch their faces because they can’t yet control their arm movements. Their nervous system is still developing, so their hands flail, jerk, and land on their face throughout the day and night. Those tiny fingernails, which grow surprisingly fast, do the rest. It’s one of the most common concerns new parents have, and in almost all cases, it’s completely normal.
Immature Motor Control Is the Main Cause
A newborn’s brain and spinal cord are still wiring up the connections needed to move with intention. In the early weeks, the spinal pathways that normally dampen unnecessary muscle activity haven’t matured yet, which leads to exaggerated reflexes, tremors, and jerky limb movements. Your baby isn’t choosing to bring their hand to their face and drag it across their cheek. Their arms are simply moving in ways they can’t predict or stop.
This lack of coordination improves steadily over the first few months as the nervous system matures. By around three to four months, most babies gain enough arm control that random scratching becomes much less frequent.
Reflexes That Bring Hands Near the Face
Several built-in reflexes make face scratching more likely. The Moro reflex, sometimes called the startle reflex, is triggered by a sudden noise, movement, or the sensation of falling. In the first phase, a baby’s arms shoot outward with elbows extended. Then the arms sweep back inward in an arc, bringing the hands in front of the body and face. If fingernails happen to catch the skin on the way past, a scratch results.
Babies also have a natural drive to bring their hands toward their mouth. This hand-to-face contact is actually a healthy self-soothing behavior, and sucking on fingers or a fist helps them calm down. But with uncoordinated movements and sharp nails, the attempt to self-soothe often leaves red marks on the cheeks, nose, or forehead instead.
Itchy Skin Can Make It Worse
If the scratching seems especially frequent or intense, a skin condition may be adding fuel. Baby eczema (infantile atopic dermatitis) causes dry, itchy patches that can appear on the face as early as the first few weeks. Babies with eczema actively try to scratch their skin to relieve the itch, which can interrupt sleep and leave more noticeable marks than the random swipes of a typical newborn.
Newborn acne is another possibility, but it’s less of a scratching trigger. While it looks similar to eczema at first glance, acne produces small pimples rather than dry, rashy patches, and it generally doesn’t itch. If you notice rough, flaky skin along with the scratching, eczema is the more likely culprit, and your pediatrician can suggest a gentle moisturizing routine to ease it.
When a Scratch Could Be a Problem
Most newborn face scratches are superficial and heal within a day or two without any treatment. Newborn skin regenerates quickly, and shallow marks rarely leave scars. Occasionally, though, a scratch can become a doorway for bacteria. Watch for redness that spreads beyond the scratch line, warmth around the area, swelling, or any oozing that looks yellow or honey-colored. These are signs of a skin infection called impetigo, which is common in infants and young children. It typically starts as small reddish sores, often near the nose and mouth, that rupture and form a crusty surface. A deeper form can produce fluid-filled blisters or painful pus-filled sores. If a scratch starts looking worse instead of better, that’s worth a call to your pediatrician.
Keeping Nails Short Is the Best Prevention
Newborn fingernails grow fast enough that they typically need trimming or filing at least once a week. A few practical tips make the job easier and safer:
- Trim while your baby sleeps. Their hands are relaxed and still, so you’re far less likely to nick the skin.
- Use baby nail clippers, small scissors, or a file. All three give you more control than tearing or biting the nails, which can leave jagged edges.
- Press the fingertip pad down gently before clipping so you can see and access both sides of the nail without catching the skin underneath.
- Smooth rough edges with an emery board after clipping, since even a tiny sharp corner can leave a scratch.
What About Baby Mittens?
Soft cotton mittens (or fold-over cuffs on newborn sleepers) are a quick fix that many parents use in the first weeks. They do prevent scratches, and there’s nothing wrong with using them short-term. The trade-off is that covered hands miss out on touch. Feeling textures, gripping a finger, and exploring their own face are all part of how babies learn about the world. Research on infant hand coverings suggests that blocking tactile feedback can limit the natural learning process for reaching and grasping.
A reasonable approach is to use mittens during sleep, when scratching is most uncontrolled, and leave hands uncovered during awake time so your baby gets sensory input. As nail-trimming becomes routine and your baby’s coordination improves, you can phase them out entirely.
How Long This Phase Lasts
For most babies, the worst of the face scratching happens in the first six to eight weeks, when motor control is at its most limited and nails seem to grow overnight. By three months, arm movements become more purposeful, and the Moro reflex begins to fade. By four to five months, it’s usually gone. You’ll still find the occasional scratch after that, especially during teething or if eczema flares, but the constant face marks of the newborn period are a short chapter.