Yes, biting can absolutely be a form of sensory seeking, where a child bites to get deep pressure (proprioceptive) or touch (tactile) input to their mouth, helping them self-regulate, focus, or manage emotions like anxiety or overstimulation. It's a way for the nervous system to get organized, often seen with other oral behaviors like chewing clothes or mouthing objects, and can be addressed by providing safe chewing alternatives and appropriate sensory activities, rather than just stopping the biting.
Seeking Sensory Input
Some children may experience sensory processing differences. Biting stimulates the part of their nervous system that helps them know what their body is doing.
Examples of Sensory Seeking Behaviors
Splashing in mud, seeking dirty types of play. Dumping toy bins rummaging through them aimlessly. Chewing on objects or clothing.
Chewing, especially on non-food items, can be a form of oral sensory seeking. The three senses involved in oral sensory processing are proprioception, touch, and taste. There are lots of reasons why someone might seek out things to chew on; but if they chew excessively, it might be a sign they are dysregulated.
As they begin to understand cause-and-effect, they also might bite a person to see if they can get a reaction. Biting also can be a way for toddlers to get attention or express how they feel. Frustration, anger, and fear are strong emotions and toddlers lack the language skills to communicate how they are feeling.
Some autistic people can display distressed behaviour. It includes what would normally be considered physically aggressive behaviour, such as slapping, biting, spitting or hair pulling, but can also include other behaviours if they are having a negative impact on the person or their family.
Biological response of oxytocin attaches the adults to infants and vasopressin is somehow associated with aggressive feelings. Cute aggression, such as biting, squeezing, and tickling, is related to the intersection of emotional responses and reward centers.
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.
You might recognize sensory seeking in behaviors such as:
Dislikes or avoids activities that require paying attention for more than one or two minutes. Loses interest and starts doing something else after engaging in an activity for a few moments. Talks a lot more and makes more noise than other children of the same age. Climbs on things when instructed not to do so.
Yes! Although they sound similar, sensory processing issues can be present without autism. Often children or adults with other neurodevelopmental or psychiatric conditions such as Developmental Delay, Intellectual Disability, Anxiety, ADHD, or mood disorders can also exhibit Sensory Processing Disorder.
Young people affected by sensory sensitivity often find dark and enclosed spaces calming. Avoid visual and auditory stimulation that is not necessary. If the young person has a positive response to movement try a rocking horse or chair swing.
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.
Autism red flags involve challenges with social communication (like avoiding eye contact, not responding to name by 12 months, lack of shared smiles/pointing) and restricted, repetitive behaviors (like hand-flapping, strong routines, lining up toys, intense fixations, sensory sensitivities, or loss of skills). Early signs in infants include no warm smiles by 6 months or no back-and-forth gestures by 12 months; regression (losing skills) is a major flag. If you notice these, seek immediate evaluation from your pediatrician.
Knowing this gives us clues to what we can do to address the child's real sensory needs and reduce biting.
Take a look at your child's behavior and see what senses they are looking to stimulate. Rather than punish them for engaging in a behavior, redirect them to another activity that stimulates their senses in a similar way. Explain why it's a better choice than the other behavior.
Poor Motor Skills or Coordination
Sensory processing issues often affect motor development: Clumsiness, frequent tripping, or difficulty navigating spaces. Struggles with fine motor tasks, such as writing, cutting, or buttoning. Avoiding sports or physical activities that require coordination.
Sensory Seeking Activities
While the exact reasons are not yet clear, changes in how the disorder is defined, increases in screening, and more awareness certainly contribute to this increase. If you have any concerns about your child's development, speak to a healthcare professional about diagnostic tests.
Additionally, inherited genetic variations contribute greatly. Research shows that both mothers and fathers can carry autism-related gene variants. Some of these are common variants that increase the risk of autism, while others are rare mutations causing more severe effects.
Mild Autism Symptoms
At the same time, though, biting is a fairly normal behavior. The American Disabilities Association even considers biting a possible sign of Autism. Even though it's common for children with Autism to bite, it's something that needs to be addressed. Of course, you cannot let your child bite themselves or others.
Skin biting is a condition in which the affected individual repeatedly bites themselves. The affected individual was originally described as a wolf-biter. However, this terminology was initially revised to designate the disorder as dermatophagia and subsequently changed to the more appropriate term dermatodaxia [1-6].
The urge to bite something can come from both psychological and physical factors, often linked to body-focused repetitive behaviors (BFRBs). These behaviors, like biting, picking, or gnawing, can be ways to cope with stress, anxiety, or discomfort.