A baby throws their head back due to normal reflexes (like the startling Moro reflex), muscle development (building neck strength for rolling/sitting), or emotional states (frustration, overstimulation, colic, or self-soothing), often linked with arching their back. While often benign and part of growth, persistent or unusual arching with feeding or severe distress warrants a doctor's check for reflux, allergies (like cow's milk), or rarer conditions like Sandifer syndrome, says a medical expert and this parent's guide, notes this parent's guide.
This is because your baby is self-soothing, or winding themselves down for sleep. They might keep it up for just a few minutes or for as long as an hour. Head banging can also happen during the day as your baby's way of communicating with you that they're upset, frustrated, or in pain.
Some common signs to look for include: Arching the back during or after feeding. Tilting or twisting the head and neck. Unexplained irritability or discomfort, particularly after feeding.
Too much arching over the long term can cause back pain and injury. Hyperlordosis, or having too much curve in your back, can result in pain, a slipped disc, or other spinal injury. Most often, lordosis is the long-term result of bad posture.
Many autistic infants are different from birth. Two common characteristics they may exhibit include arching their back away from their caregiver to avoid physical contact and failing to anticipate being picked up (i.e., becoming limp).
You may also notice your baby throw their head back when they arch their back. In babies younger than 2 months old, this can be a part of the Moro reflex. When startled by a loud noise, newborns instinctively throw their head back and quickly extend their limbs before pulling them back in toward their core.
The "6-second rule" for autism is a communication strategy where a speaker pauses for about six seconds after asking a question or giving information, giving the autistic person extra time to process it without feeling rushed, which helps reduce anxiety and allows for a more thoughtful response, reducing frustration for both parties. Instead of repeating or rephrasing, which can be confusing, you wait, and if needed, repeat the exact same words after the pause.
If the behavior escalates or appears alongside other symptoms—such as vomiting, poor feeding, stiff limbs, or developmental delays—it may warrant a pediatric evaluation to rule out more serious conditions. Keep in mind: infant back arching at night is often temporary.
Reasons Why Babies Throw Their Heads Back
Babies may throw their heads back when they are excited, happy, or even frustrated. When infants want interaction, they might throw their heads back to get noticed by caregivers or others around them.
Opisthotonos is a condition in which a person holds their body in an abnormal position. The person is usually rigid and arches their back, with their head thrown backward. If a person with opisthotonos lies on their back, only the back of their head and heels touch the surface they are on.
Most cases of head tilt are associated with a condition called torticollis, although in rare instances a head tilt can be due to other causes such as hearing loss, misalignment of the eyes, reflux (a flowing back of stomach acid into the esophagus), a throat or lymph node infection, or, very uncommonly, a brain tumor.
The 7 key danger signs for newborns, often highlighted by organizations like the WHO, are not feeding well, convulsions, fast breathing, severe chest indrawing, lethargy/unconsciousness (movement only when stimulated), high or low temperature, and jaundice (yellow skin/soles) or signs of local infection like an infected umbilical stump, requiring immediate medical attention.
Movement stimming includes activities such as rocking, spinning, jumping, or pacing. Your child might also walk on their toes or bounce in place. Taste and smell stimming can involve licking objects, smelling things repeatedly, or seeking certain tastes.
The most common theory is that these are self-soothing behaviors that help your child relax and fall asleep. Your child may find these movements comforting because they mimic the feeling of a caregiver holding or rocking them.
What are the symptoms of a developmental delay?
This might include your baby stiffening their arms or extending their fingers at an angle. What if they're pointing and gesturing much less than their neuro-typical friends? It might mean your baby is developing differently, or it could be an early indicator that your child is on the autism spectrum.
Red flags for a 7-month-old include not rolling over, not sitting unsupported, poor eye contact, lack of babbling or responding to sounds, extreme stiffness or floppiness, not bringing objects to mouth or swapping hands, and showing no reaction to caregivers' emotions, which warrants a call to the pediatrician for developmental concerns.
The most frequent signs of giftedness found in this study included long attention span, excellent memory, early and extensive vocabulary development, curiosity, early reading ability, rapidity of learning, and the ability to generalize concepts (See Table 1).
They do it because it's rhythmic and it comforts and soothes them. For example, your child might: get on their hands and knees and rock back and forth, hitting their forehead on the bedhead or edges of the cot. sit in bed and bang their head backwards against the bedhead.
Excessive back arching for prolonged periods can lead to pain, injury, and muscle loss. It can also exacerbate certain spinal conditions, such as a herniated disc. However, arching the back briefly during physical activity may have health benefits.
But when your infant has painful gas, especially if it's frequent, it can cause your baby to cry or become fussy—until it's passed; unlike colic, which causes crying and fussiness that lasts for hours across days and weeks. Gas can have distinctive symptoms, too, such as a swollen-looking belly.
Signs of overfeeding a baby include frequent spitting up/vomiting, fussiness, gassiness, a tight belly, and changes in stool (loose, green, frothy, or explosive). While babies often know when they're full (turning away, falling asleep), signs of overfeeding often involve discomfort and digestive issues, sometimes with rapid weight gain or a very full, hard tummy, especially if fed past fullness cues.
Around 90% of autism cases are attributed to genetic factors, meaning autism is highly heritable, with many different genes contributing, rather than a single cause, often interacting with environmental influences during early brain development, though specific environmental factors don't cause it but can increase risk. Twin studies show strong genetic links, with concordance rates between 60-90% in identical twins, and research points to complex interactions of many genes and prenatal/perinatal factors.
Chinning is a form of repetitive self-stimulatory behavior (stimming) that you may notice in children or adults with autism. It involves pressing, rubbing, or holding the chin against objects, surfaces, or even hands to gain sensory input or comfort.
Children with autism may exhibit rigidity, inflexibility and certain types of repetitive behavior such as: Insistence on following a specific routine. Having difficulty accepting changes in the schedule. A strong preoccupation with a particular interest.