When Kids Don’t Recognize Their Body’s Signals: Understanding Interoception and Autism

Updated on November 4, 2026

Your child has been highly focused on a game and suddenly rushes to the toilet, barely making it in time. Or they are ‘hangry’ and acting out because they didn’t eat their food. Or they down an excessive amount of water in one go after not drinking all day. Sound familiar? What may look like defiance or ‘bad behavior’ is actually something called interoception: the sense that helps us recognize body signals like thirst, hunger, a full bladder, and the like. For some autistic children, interoception doesn’t work automatically, and they may struggle to recognize when it’s time to eat, drink, or use the bathroom. 

Understanding interoception in autistic children can help parents make sense of these everyday challenges and respond more effectively with practical support. We’ll explore how interoception works, how autism can affect body awareness, why these differences can influence eating, drinking, toileting, and emotional regulation, and what parents can do to help. We’ll also look at when professional support may be needed, and how tools like AngelSense help families better understand their child’s daily routines.

What Is Interoception?

Harvard Medicine defines interoception as “the perception of internal signals from the body.” It is the neurological process that allows us to recognize what is happening inside of us. Some examples of these signals include: 

• Biological needs transmitted through feelings: hunger for food, thirst for hydration, and pressure for urination or defecation. 


• Environmental needs transmitted through symptoms: sweating in heat, shivering in cold, and harm, pain, or stress in dangerous situations. 


• Psychosomatic symptoms: increased heart and breathing rate when scared, nervous, or excited. 

When most people receive these signals, they know instinctively what action to take to feel better and protect their health, without having to think about it. When you are thirsty, you drink both because thirst is unpleasant, and because you would otherwise get dehydrated. 

The basic flow is “notice”, “recognize”, “respond”, i.e., your stomach rumbles, you realize you’re hungry, and you go eat something. But this process gets muted in people with interoception, and a gap at any step in this flow leads to a missed need.

Some experts refer to interoception as the “eighth sense” because it is seen as an addition to the “classic” five senses, as well as to proprioception and the vestibular system.

What Is Interoception in Autism?

Studies estimate that 74% of autistic people experience “interoceptive confusion.” However, there have been no conclusive findings about autism and interoception, possibly because interoception is highly related to alexithymia, which is the inability to articulate feelings and emotions (see below), and also because these behaviors vary widely by child and by age. Since emotions are subjective, researchers have difficulty in defining exactly when, for example, somebody with autism is not feeling hungry is either the result of interoception or simply because they are generally not big eaters. 

The reason doctors call it ‘interoceptive confusion’ is partly because individuals react in such diverse ways: some autistic children feel their body signals too quietly, some too loudly, and some cannot differentiate between signals (such as thirst vs. hunger vs. anxiety). For instance, take autism thirst cues:

• Hyposensitivity: “Ignoring” the feelings related to thirst until signs of dehydration appear 


• Hypersensitivity: Constantly drinking fluids despite being fully hydrated; this is sometimes related to an autistic person’s negative interpretation of body signals, i.e., certain physical sensations cause anxiety and an over-reaction


• Dysfunction: Difficulty in discerning which biological signal is being experienced, so that hunger and thirst feel the same

What Is the Connection Between Autism and Not Feeling Hunger or Thirst?

One of the most common forms of interoception and autism relates to hunger and not drinking properly. Kids with autism might skip a meal without complaint, or go many hours without drinking. This often happens when they are totally concentrated on an activity, and the first signs of trouble show up as “hangry” behavior. Why do autistic people not feel hunger cues? The reasons include: 

• Neurological factors, which often present themselves as Sensory Processing Disorder. SPD is a condition where sensory stimuli, like hunger or thirst, aren’t interpreted properly by the brain or nervous system.


• Selective eating: Perhaps dinner includes foods that your child does not like, and so they show no interest in mealtime. 


• Monotropism, which is the tendency of people with autism to focus on one thing at a time, and usually something that they prefer. They are not willing to interrupt their enjoyable activity even when they might be feeling hungry. 

Interoception and Toileting: Why Potty Training Can Take Longer

The physical aspects of ASD influence autism interoception and toileting. Hypotonia, or poor muscle tone, is common among people with autism. This often translates to a weak bladder, with studies finding that 43% of autistic people have experienced severe lower urinary tract symptoms. It is a similar picture with constipation, as this is the most common gastrointestinal disorder in the ASD population. 

Together with interoception and monotropism, you can be sure that an autistic child will often rush to the bathroom at the last second or have accidents. It’s important for caretakers to understand that this is not “bad behavior” or some sort of boundary testing. Instead, the effect of autism interoception on potty training will require a bit of extra attention. 

Whether you’re before or after potty training, it’s important to first rule out constipation as a medical issue with your family pediatrician. The same goes for any other interoception questions, such as potential dehydration or growth-related concerns. Autism toileting problems can be managed in the same way as autism interoception and eating, i.e., via a combination of preventative routines and visual tools (more on this later).

What Is the Link Between Interoception, Autism, and Alexithymia?

Alexithymia is defined as “difficulty experiencing, identifying, understanding, and expressing emotions”. There is a strong connection here to interoception, because emotions are commonly experienced as physical feelings and when you struggle to read body signals, it makes it that much more challenging to name feelings. For instance, excitement might show up as increased heart rate and sharper mental focus, but a person with this condition likely won’t notice it. 

Alexithymia is present in about 50% of the autistic population, compared to a rate of approximately 5% in the general population. For caretakers, and for those with ASD, interoception, alexithymia, and autism often overlap, resulting in additional challenges: 

• Eating disorders, because interoception limits a person’s ability to feel hunger or satiation, while alexithymia is often a factor in over/undereating


• Emotional regulation, as a lack of physical feeling connected to emotions restricts awareness of them; for example, people with autism often lack a fear response to threatening situations


• Problems with interpersonal communication since a person with alexithymia, for instance, might not feel happiness upon receiving a gift, which could be interpreted as rudeness 

How Interoception Affects Emotions and Behavior

Interoception in autism affects everyday activities related to eating, drinking, and sleeping, which in turn affects their emotions and behavior. These include:

• When a person with ASD does not notice and relieve hunger, thirst, tiredness, or a full bladder, their biological needs build and turn into irritability, a meltdown, or an urge to get away from wherever they are, which can turn into a wandering incident.


• Many times, people with autism engage in “masking” while outside the home (particularly at school) and only tend to their bodily needs when they get home, a practice which results in emotional and physical stress.


• When a person with autism and interoception ignores thirst and hunger, they might overeat or overdrink once they get the chance. But this can then swing the other way because interoception also interferes with a feeling of fullness. This is one of the reasons why approximately 33% of children with autism are severely overweight (compared to 13% of children in the general population).   

The Interoception Curriculum and Other Therapies

One of the leading solutions for helping autistic children overcome interoception challenges is occupational therapist Kelly Mahler’s Interoception Curriculum. Mahler’s approach teaches children how to notice what is happening in their bodies and how to feel better. It’s comprised of 3 steps: 

• Body – noticing and describing internal signals


• Emotion – connecting those signals to feelings and emotions


• Action – doing the right thing to satisfy biological needs and feel better

A core element of this curriculum is learning how to separate and focus on specific body signals. For example, interoception activities for kids who are struggling with hunger signals will teach them that, when their stomach rumbles, it is a sign of being hungry. Then, as part of a practice session, the caretaker will ask “How do you know when you’re hungry?” (instead of “Are you hungry?”), and the child will try to notice if their stomach has been rumbling. 

In addition to caretakers, the Interoception Curriculum has versions to suit independent autistic people and professional therapists. For those seeking more training (or who don’t see success at first), Mahler offers a variety of courses. 

And then there are other forms of interoception therapy. Two of the most popular are: 

1. Mindful Awareness in Body-Oriented Therapy (MABT) by Dr. Cynthia Price. This consists of three stages that promote interoceptive awareness, namely, identifying external sensations; linking them to internal feelings, in part through breathing and physical touch; and ensuring continued awareness of feelings through therapy and the evaluation of personal experiences.


2. Dialectical Behavior Therapy (DBT) by Dr. Marsha Linehan. DBT is a type of psychotherapy that is designed to treat people with mental health conditions, including autistic interoception. Through discussion sessions, DBT encourages people to focus on their present feelings (mindfulness); identify emotions when under stress; ask for help; and combine these three steps into emotional control.

 

How Can Parents Support a Child with Interoception Differences?

Overcoming interoception challenges begins with household routines that reinforce the child’s progress. Parents should be proactive by making sure that healthy snacks and drinks are offered and consumed regularly; tracking their kid’s body mass index and adjusting their food intake accordingly; having clearly scheduled breaks for eating, drinking, and using the bathroom; and setting up strict bedtime routines for preparation, going to sleep, and getting up. 

Instead of asking your child, “Are you thirsty?” ask them, “How do you know when you’re thirsty?” You can use visual tools, such as body maps and hunger/fullness scales, to reinforce these routines. When it comes to autism interoception and toileting issues, try these tips for a more successful routine:

• Schedule bathroom breaks, starting when the child comes home


• Use AAC or picture cards so that your child can point out “bathroom” when you ask them how they are feeling (the same goes for hunger, fullness, thirst, etc.)


• Hang illustrated toilet routines that serve as a checklist for flushing, washing hands, etc.

Finally, make sure that you discuss biological maintenance schedules and methods with your child’s school. 

When Should Parents Seek Professional Support?

Despite your best efforts, there’s a chance that interoception activities for toileting, eating, or drinking may not solve the issue. If your child is losing (or gaining) too much weight, is often dehydrated, seems stressed about food, doesn’t seem to notice physical pain, or has frequent bathroom issues, then it’s time to turn to a professional. 

A pediatrician will probably ask for details of your child’s behavior, so it’s wise to keep a record of times and quantities connected to meals and drinking, as well as your child’s bathroom schedule. They might refer you to an occupational therapist, so while there, ask about the Interoception Curriculum.

How AngelSense Can Help Parents See Daily Patterns

The AngelSense GPS tracker is another way to reduce the effect of poor interoception. AngelSense allows you to see where your child is at all times, and receive alerts if they stray from their usual locations. The Timeline feature and arrival-departure alerts give you insights into the shape of their day, including if a bus ride is longer than usual, whether your child was picked up late, if they’ve gone for a long stretch without a break, and so on. 

Through the auto-pickup speakerphone, you can communicate with your child and remind them to eat, drink, use the bathroom, and calm them if they are panicking. And in a worst-case scenario, AngelSense technology enables parents, school staff, and first responders to resolve wandering episodes as quickly as possible. 

Your Perception of Interoception Is Critical

When an autistic child doesn’t notice hunger, thirst, or the need to use the bathroom, it isn’t a choice, and it doesn’t mean you’re doing anything wrong as a parent. Autism interoception affects emotions, behavior, and everyday routines, but understanding what’s behind these challenges can make them easier to manage. Predictable schedules, simple words to describe body sensations, and visual supports truly fill the gap when those internal signals are hard to recognize.

Progress doesn’t have to happen overnight. With patience, consistency, and the right support, you can help your child build body awareness one small step at a time. Those small steps can make everyday life a little easier for your child — and for your whole family.

Get peace of mind from AngelSense, the groundbreaking AI-based assistive technology designed to enhance safety and peace of mind for individuals with special needs and their families. Our solution ensures you stay connected with your loved ones, empowering a higher level of independence while maintaining safety. Learn more about how AngelSense can make a difference for your family.