
It is common for newborns to shake or twitch in their sleep, and this is usually a benign phenomenon known as benign sleep myoclonus. While it may be alarming for parents to witness, it is often a normal part of a baby's development. However, forceful shaking of a newborn by an adult can be harmful and is forbidden due to the risk of injuries, disabilities, or even death.
| Characteristics | Values |
|---|---|
| Shaking a baby | Can be harmful, particularly for babies under 3-4 months old, as their neck muscles are not fully developed |
| Shaking a baby | Can cause injuries, disabilities, or even death |
| Shaking a baby | Does not stop a baby from crying |
| Twitching in sleep | A harmless phenomenon called benign sleep myoclonus |
| Twitching in sleep | Caused by reflexes, such as the Moro reflex or tonic neck reflex |
| Twitching in sleep | Part of their development as they learn about their limbs |
| Twitching in sleep | Dreaming |
| Twitching in sleep | May be caused by caffeine consumption by the mother |
| Twitching in sleep | May be caused by hormonal changes |
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What You'll Learn

Shaking a newborn is dangerous and can cause injuries or even death
Newborns have large heads in proportion to their bodies, and their skulls contain a higher proportion of fluid than adults. When shaken, their brains bounce back and forth against the skull, causing injuries to the brain tissue. This violent motion can lead to bleeding within the brain or behind the eyes, known as subdural and retinal hemorrhages, respectively. The force can also cause tears in the brain tissue and spinal cord, resulting in weakness, paralysis, or disability. Even mild cases of shaken baby syndrome can lead to developmental difficulties, while severe cases can cause brain damage, permanent disabilities, and death.
It's crucial to recognize that unintentional shaking can also be harmful. For example, forcefully tossing a baby in the air or shaking their neck back and forth can cause injuries, especially in babies under 3-4 months old whose neck muscles are not fully developed. Even gentle rocking to soothe a baby should be done carefully, as some babies may have an open anterior fontanelle, which is a soft spot on their head. Forceful shaking can cause increased intracranial pressure, leading to symptoms like drowsiness, poor appetite, vomiting, seizures, and discomfort. If you notice any of these symptoms after unintentionally shaking your baby, seek immediate medical attention and provide honest information to facilitate a prompt diagnosis and treatment.
To prevent shaken baby syndrome, caregivers must understand the dangers of shaking a baby and find alternative ways to cope with their stress and exhaustion when dealing with a crying infant. Safe and effective ways to play and interact with infants include gentle rocking, cuddling, singing lullabies, and playing harmless games like peekaboo and pattycake. Additionally, always ensure that babysitters and caregivers are aware of the risks associated with shaking a baby and know how to handle stressful situations without resorting to violence. Remember, shaking a baby is never an appropriate response to their crying and can have devastating consequences.
While newborn sleep twitching can be alarming, it is often a harmless phenomenon called benign sleep myoclonus, indicating the developing nervous system. This is a normal occurrence and is no more dangerous than hiccups. However, if you are concerned about any unusual movements or symptoms, it is always best to consult a healthcare professional.
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Newborn reflexes can cause twitching while sleeping or jerking when surprised
Shaking a baby is extremely dangerous and can lead to severe injury or even death. However, it is generally safe to gently rock a baby to sleep. Newborns have several reflexes that cause involuntary movements or actions, which can sometimes be startling to new parents. These reflexes are a normal part of a baby's development and indicate that their brain and nervous system are functioning correctly.
One example of a newborn reflex is the Moro or startle reflex, which is triggered by a loud noise or sudden movement. The baby will throw back their head, extend their arms and legs, cry, and then pull their limbs back in. This reflex typically lasts until the baby is about two months old. Another reflex is the rooting reflex, which helps the baby find the breast or bottle to start feeding. When the corner of the baby's mouth is stroked or touched, they will turn their head and open their mouth in the direction of the touch. This reflex usually lasts about four months. The grasp reflex is another common newborn reflex, where the baby closes their fingers in a grasp when their palm is stroked. This typically lasts until the baby is about five to six months old.
These reflexes can sometimes cause newborns to twitch or jerk in their sleep, which can be concerning for parents. However, it is important to know that this is usually a benign phenomenon called benign sleep myoclonus. It is a harmless indication of the baby's developing nervous system and is no more dangerous than having hiccups.
While newborn reflexes and twitching during sleep are typically normal, it is always best to consult a healthcare provider if you have any concerns about your baby's development or health.
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Twitching is a normal part of a baby's development and motor skills
It is understandable for parents to be worried about their newborn shaking or twitching in their sleep. However, rest assured that twitching is a perfectly normal part of a baby's development and motor skills. Lyndsey Garbi, M.D., a pediatrician in New York City, explains that twitching is an expected part of a baby's development and is relatively common. This phenomenon is known as benign sleep myoclonus, which is no more dangerous than hiccups. It is caused by the moro or startle reflex that babies typically grow out of around three or four months. During this period, babies may begin producing their own sleep hormones, and the twitching usually stops.
Babies make a lot of unusual sounds and movements in their sleep, especially in the early newborn days. Parents may notice their bodies twitching or spasming, which can be alarming to witness. However, it is essential to remember that these movements are a normal part of their development. The twitching can seem mildly rhythmic or like a vibration of the limbs, lasting from one to fifteen minutes. It can manifest as jerky movements, such as kicking and punching in random directions or opening their arms wide and then bringing them back to the midline.
While twitching is typically a benign occurrence, there are some instances where further investigation may be warranted. Dr. Garbi advises parents to observe their babies and see how they react to the twitching. If the baby wakes up fully and the twitching stops, it is usually not a cause for concern. Additionally, if the baby looks well, has good coloring, and the twitching is not prolonged or episodic, it is typically considered normal. However, if parents notice any concerning symptoms or if the twitching persists, it is essential to consult a healthcare provider.
It is important to remember that gentle rocking to calm or lull a baby to sleep is generally not harmful. However, forceful shaking can lead to injuries and should be avoided. Overall, witnessing a newborn shake or twitch in their sleep can be concerning for parents, but it is often a normal and harmless display of their developing nervous system and motor skills.
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Babies may twitch because they are dreaming
It is common for babies to twitch in their sleep, and it is usually nothing to worry about. The medical term for this phenomenon is benign neonatal sleep myoclonus. It is a sleep-related movement condition that occurs primarily during non-rapid eye movement (NREM) sleep, although it can also happen during REM sleep, the cycle of sleep where we dream.
In rarer cases, twitching during sleep can indicate other issues. If you are concerned about your baby's twitching, it is always best to consult a healthcare professional.
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Shaking may be a symptom of a seizure
Shaking or twitching during sleep is a common occurrence in newborns. This phenomenon is known as benign sleep myoclonus, and it is a harmless display of your baby's developing nervous system. It is no more dangerous than hiccups and is usually not a cause for concern.
However, in some cases, shaking during sleep can be a symptom of something more serious, such as seizures or infantile spasms. Seizures occur when the brain temporarily short-circuits, causing uncontrolled body jerks, an inability to communicate, and unintended urination. While some seizures may not have any outward signs, others can cause visible shaking or twitching.
Infantile spasms are another condition that can cause shaking or jerking during sleep. These spasms typically last for one to two seconds and occur in a series or cluster every five to ten seconds. They often happen when a baby is falling asleep or waking up and can be subtle, such as a head nod or quick eye motion, or more noticeable, such as the sudden stiffening of the baby's muscles.
If you are concerned that your newborn's shaking may be a symptom of seizures or infantile spasms, it is important to consult a healthcare professional as soon as possible. A full medical evaluation, including a neurological exam and sleep EEG (electroencephalogram), may be required to diagnose seizures. For infantile spasms, early diagnosis and treatment are key, so it is crucial to seek medical advice if you notice any concerning symptoms.
In summary, while shaking during sleep in newborns is often harmless and related to their developing nervous system, it can sometimes be a symptom of seizures or infantile spasms. If you have any concerns about your newborn's shaking, it is always best to seek professional medical advice to ensure your baby's health and well-being.
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Frequently asked questions
It is relatively common and considered normal for newborns to shake or twitch while sleeping. This is known as benign sleep myoclonus, and is a harmless phenomenon that is an expected part of their development.
Benign sleep myoclonus can manifest as jerky movements, such as kicking and punching in seemingly random directions, or opening their arms wide and then bringing them back in. These episodes typically last from one to 15 minutes.
While benign sleep myoclonus is generally harmless, if you are concerned about jerky movements when your baby is asleep, it is important to talk to your child's healthcare provider. Additionally, if your baby has been forcefully shaken, seek immediate medical attention if you notice symptoms such as drowsiness, poor appetite, regurgitation, vomiting, seizures, longer sleep, and discomfort.











































