Your Newborn's Reflexes Explained: What the Moro, Rooting and Grasp Reflexes Reveal About Your Baby

If you have ever seen your newborn suddenly fling their arms outward in the middle of sleep, or felt their tiny fingers curl firmly around yours the moment you offered them, you have already witnessed the fascinating world of primitive reflexes in action. These automatic, involuntary movements are not random. They are among the earliest and most reliable signs of a healthy, developing nervous system, and understanding them can help you feel far more confident during those intense, sometimes bewildering first weeks with a new baby.

In this guide, we walk you through the main newborn reflexes you will notice in the early weeks, explain what each one is designed to do, and share what paediatricians and midwives look for when checking your baby's neurological development.

What Are Newborn Reflexes?

Newborn reflexes, also known as primitive reflexes, are automatic muscular responses that are present from birth. They originate in the brainstem and the lower regions of the brain, which are fully formed in a term newborn, while the higher cortex is still developing. As the cortex matures over the first several months of life, it gradually takes over and suppresses these early reflexes, replacing them with intentional, voluntary movements.

For families in the Netherlands, Germany, Belgium, Denmark, Norway, Sweden, and Luxembourg, these reflexes are routinely assessed by a midwife or paediatrician during postnatal check-ups. The timely appearance, normal expression, and eventual fading of each reflex are among the most dependable early indicators of your baby's neurological health. A reflex that is absent, asymmetric, or that lingers far beyond its expected window may point to an underlying concern worth investigating.

The Moro Reflex: Your Baby's Built-In Startle Response

The Moro reflex, commonly called the startle reflex, is one of the most dramatic and recognisable involuntary responses your newborn will display. It is triggered by a sudden noise, a rapid change in position, or the sensation of falling, such as when your baby's head drops even a few centimetres without support. In response, your baby will throw both arms outward with the palms open and fingers spread wide, then quickly pull their arms back in toward their chest in a hugging motion, often accompanied by a brief cry.

This reflex is present from birth and peaks during the first month of life. It begins to fade around two months and should have disappeared entirely by four to six months. Scientists believe it is an evolutionary remnant: in our primate ancestors, this grasping motion would have helped a baby cling to its mother if it sensed it was falling.

One of the most effective ways to reduce how often the Moro reflex interrupts your baby's sleep is swaddling. A snug, safe swaddle keeps your baby's arms close to their body, containing the sudden outward fling so they are far less likely to startle themselves awake. Many parents across Northern Europe find that a well-fitted swaddle wrap makes a remarkable difference to the length and quality of newborn sleep in those first precious weeks. The HelloLoomi Baby Swaddle Wrap for Sleeping and Cuddling is made from soft, Oeko-Tex certified cotton and is designed to create exactly the snug, secure feeling that helps calm the Moro reflex and extend your baby's rest.

The Rooting Reflex: Finding Food from the Very First Day

The rooting reflex is one of the most immediately useful reflexes your baby is born with. When you stroke or lightly touch their cheek or the corner of their mouth, they will automatically turn their head toward the stimulus and open their mouth, searching for a nipple or teat. This seeking motion is the basis of feeding in the very early days, before your baby develops the intentional coordination to find the breast or bottle with more purpose and skill.

The rooting reflex is strongest in the first weeks and gradually fades between three and four months, when babies begin feeding with greater awareness and voluntary control. If your baby is hungry, the rooting reflex tends to be especially pronounced and urgent, which is a helpful early hunger cue to recognise. You may also notice it activating when your baby's face brushes against your chest or shoulder, which is entirely normal and nothing to be concerned about.

The Sucking Reflex: The Foundation of Every Feed

Closely related to rooting is the sucking reflex. When something is placed in your baby's mouth, a nipple, a teat, or your clean fingertip, they will begin to suck automatically. This reflex actually develops during pregnancy: ultrasound imaging shows babies sucking their thumbs from as early as fifteen weeks of gestation, and it is fully established in term newborns at birth.

The sucking reflex works alongside rooting to make early breastfeeding and bottle feeding possible. It also has a powerful soothing function. Non-nutritive sucking, such as on a dummy or a finger, activates a calming response in newborns and can help a fussy baby settle. Like the rooting reflex, sucking begins to become more voluntary and intentional at around four months.

The Palmar Grasp Reflex: Those Tiny Fingers That Won't Let Go

The palmar grasp reflex is the one that tends to stop parents in their tracks. The moment you place your finger or a small object into your newborn's open palm and gently press, their fingers will curl around it with a surprisingly firm grip. This reflex is present from birth and can be strong enough to briefly support a baby's body weight in certain positions, though this is not something to test deliberately.

The palmar grasp reflex begins to fade between three and five months of age, making way for the more purposeful voluntary reaching and grasping that is one of the great milestones of early infancy. A similar reflex called the plantar grasp occurs on the soles of the feet: stroke the ball of your baby's foot gently and their toes will curl inward automatically.

The Stepping Reflex: Walking Practice Before Walking

One of the most delightful reflexes to discover is the stepping reflex, also sometimes called the walking or dance reflex. If you hold your baby upright with their feet resting lightly on a flat surface, they will begin to make coordinated, rhythmic stepping movements, almost as if they are trying to walk. This is not voluntary movement but a brainstem-driven pattern that mimics the walking gait.

The stepping reflex is present from birth and fades by around two months of age. Researchers believe it is a neurological precursor to walking that temporarily goes underground as the nervous system reorganises. True voluntary walking then emerges months later, typically between nine and fifteen months, when the motor cortex has matured sufficiently to take over.

The Tonic Neck Reflex: The Fencing Position

The asymmetric tonic neck reflex, widely known as the fencing reflex, produces one of the most characteristic newborn poses. When your baby's head turns to one side, the arm on the side toward which they are facing extends outward while the opposite arm bends at the elbow, creating the appearance of a fencer in a lunge. Babies often adopt this posture naturally when they are alert and lying on their back.

This reflex appears at birth and persists for longer than most of the others, typically fading between five and seven months. It is thought to lay early groundwork for hand-eye coordination by encouraging babies to focus on their extended hand. Like all primitive reflexes, its disappearance within the expected timeframe is an important milestone.

The Babinski Reflex: A Sign That Changes Meaning With Age

The Babinski reflex is triggered by stroking the outer edge of your baby's foot from heel to toes. In newborns and infants, the big toe extends upward while the other toes fan outward. In babies this is a completely normal and healthy response. In adults, however, the same response would signal a problem with the motor pathways in the brain, which is why doctors test it across all ages as a neurological screening tool.

The Babinski reflex is normal throughout the first year of life and may persist until 12 to 24 months, when the spinal cord pathways become fully myelinated and the reflex disappears naturally.

Supporting Your Newborn Through the Reflex Stage

Understanding your baby's reflexes helps transform what can otherwise feel like puzzling or alarming behaviour into something you can recognise and respond to calmly. When your baby turns toward your touch, they are rooting. When they grip your finger with unexpected strength, the palmar grasp is doing its job. When they startle awake in the night, the Moro reflex has been triggered, and the solution is often as simple as making sure they are warm, held, and well swaddled.

Soft, breathable textiles make an enormous difference to how settled newborns feel during this stage. A lightweight muslin blanket can serve as a gentle wrap during supervised rest, a pram liner, or a surface for tummy time, providing the cosy, familiar sensation that many newborns find deeply calming. The HelloLoomi Muslin Baby Blanket and Pillow Set is crafted from 100% breathable cotton muslin and is gentle enough for the most sensitive newborn skin, making it a thoughtful addition to your early weeks toolkit.

When to Speak With Your Healthcare Provider

Most primitive reflexes follow a broadly predictable pattern, and every healthy baby develops within a normal range. However, there are some situations where it is worth reaching out to your midwife, health visitor, or GP. It is sensible to seek advice if a reflex appears entirely absent from birth on one or both sides, if you notice a clear asymmetry where the reflex is present on one side only, if a reflex such as the Moro or palmar grasp persists strongly past six months, or if your baby seems unusually floppy or has noticeably low muscle tone. Parents of premature babies should keep in mind that reflexes will be assessed according to corrected age rather than birth date.

Conclusion

Your newborn arrived in the world already equipped with a remarkable set of built-in programmes. Each reflex is a window into a nervous system that is organising itself, day by day, to support the intentional smiles, reaching hands, and eventually the wobbly first steps that lie ahead. Watching those primitive responses gradually give way to purposeful movement is one of the great privileges of those early months with your baby.

At HelloLoomi, we believe the earliest weeks deserve the softest, most thoughtful products. From swaddle wraps that help ease the Moro reflex to breathable muslin sets made for the most delicate skin, our collection is designed to support you and your newborn through every reflex, every feed, and every sleepy cuddle. Explore the HelloLoomi newborn range and find everything you need to welcome your little one beautifully.

Frequently Asked Questions

What is the Moro reflex in newborns and when does it go away?

The Moro reflex, also known as the startle reflex, is an automatic response in which a newborn throws their arms outward and then pulls them back toward their chest, often triggered by a sudden noise, movement, or the feeling of falling. It is present from birth, peaks during the first month, and typically fades between four and six months of age as the brain matures and develops voluntary motor control.

How does swaddling help with the Moro startle reflex?

Swaddling helps manage the Moro reflex by keeping your baby's arms snug against their body, so the sudden outward arm movement is contained and far less likely to jolt your baby awake during sleep. A well-fitted swaddle recreates the secure, enclosed feeling of the womb and can significantly reduce the frequency and intensity of startle responses, supporting longer stretches of sleep for both baby and parent.

What is the rooting reflex and why is it important for feeding?

The rooting reflex causes a newborn to turn their head toward anything that touches their cheek or the corner of their mouth, opening their mouth to search for a nipple or teat. It is present from birth and is essential for establishing both breastfeeding and bottle feeding before intentional feeding skills develop. The rooting reflex typically fades between three and four months as voluntary feeding takes over.

Is it normal for my newborn to have such a strong grip?

Yes, the firm grip your baby places on your finger is the palmar grasp reflex, a completely normal involuntary response that is present from birth. When pressure is applied to your baby's palm, their fingers curl around the object automatically and can hold on with surprising strength. This reflex begins to fade between three and five months of age as voluntary reaching and grasping develop.

When should I be worried about my baby's reflexes?

It is worth speaking with your midwife, health visitor, or GP if a reflex seems completely absent, appears only on one side of the body, or persists significantly beyond its expected window. For example, a very strong Moro reflex still present past six months, or a palmar grasp that shows no signs of fading by five to six months, warrants a conversation with a healthcare professional. Parents of premature babies should note that reflexes are assessed according to corrected age.

What is the stepping reflex in babies?

The stepping reflex causes a newborn to make coordinated, walking-like movements when held upright with their feet touching a flat surface. It is not voluntary walking but a primitive brainstem-driven pattern, and it normally disappears by around two months of age. Voluntary walking emerges much later, between nine and fifteen months on average, once the motor cortex is sufficiently developed.

What HelloLoomi products help support a newborn during the reflex stage?

Swaddle wraps are one of the most helpful products for managing the Moro reflex, as they keep your baby's arms secure and reduce how often the startle response wakes them from sleep. Soft muslin blankets are also ideal for wrapping, cuddling, and creating a calm sensory environment during the newborn stage. HelloLoomi offers a range of Oeko-Tex certified swaddle wraps and breathable muslin sets that are gentle on sensitive newborn skin and thoughtfully designed for the earliest weeks of life.