Understanding and supporting our children’s needs, especially when their mental health is affected, is a big part of parenting. Autism and bipolar disorder are two diagnoses that sometimes come up together. They are very different: autism is a lifelong neurodevelopmental difference, while bipolar disorder is a mood disorder that comes in episodes. But there are some real connections between autism and bipolar, and understanding them can help families get the right support. Below, we explain how bipolar and autism are linked, how to tell them apart and what support helps.
What is Autism Spectrum Disorder?
Autism Spectrum Disorder (ASD) is a neurodevelopmental difference that shapes how a person communicates, interacts with others, processes sensory information and experiences the world. Autism varies greatly from person to person, and autistic people have very different strengths and support needs. Some common autistic traits include:
Different ways of communicating and connecting. Autistic people may read social cues, body language and facial expressions differently, and may build relationships in their own ways. Misunderstandings often run both ways between autistic and non-autistic people.
Speech and language differences. Some autistic children start talking later, some use few or no spoken words, and some communicate through AAC, sign or gestures. A speech pathologist or pediatrician can assess your child’s communication and suggest supports. Every child develops at their own pace.
Repetitive movements and deep interests. Stimming and deep interests in particular topics help many autistic people regulate, explore and engage with the world. Encouraging their interests can be a great doorway to learning and connection.
Sensory differences. Many autistic people are very sensitive to certain sounds, textures, lights or smells, while others seek out sensory input.
Autism is often identified in early childhood, and early support can make a big difference to a child’s wellbeing and development.
What is Bipolar Disorder?
Bipolar disorder, once called manic-depressive illness, is a mood disorder involving episodes of intense emotional highs (mania or hypomania) and lows (depression). These episodes affect energy, activity, sleep and behavior. Signs to look out for include:
During manic episodes, people may have a surge of energy, a much lower need for sleep, a sense of grandiosity, and may take risks they normally wouldn’t.
During depressive episodes, people may have low energy, persistent sadness, loss of interest in activities and feelings of hopelessness. If you notice these signs, it’s important to seek support from a healthcare professional.
Bipolar disorder usually begins in late adolescence or early adulthood, although it can occasionally start in childhood.
Bipolar 1 vs 2
The main difference between Bipolar 1 and 2 is the intensity of the mood episodes. Bipolar 1 disorder involves full manic episodes: intense periods of extremely elevated mood, energy or irritability that last at least a week and sometimes need hospital care. Bipolar 2 disorder involves hypomania, a milder form of mania, along with major depressive episodes. Hypomania is less intense than mania, but people with Bipolar 2 often have longer or more frequent periods of depression, which can significantly affect daily life.
Exploring the Link Between Autism and Bipolar Disorder
Studies suggest that people with autism are more likely than the general population to be diagnosed with bipolar disorder. Estimates vary, with one large review putting it at around 5% of autistic people, compared with roughly 1 to 2% of the general population. Here are some factors to keep in mind:
1. Genetic Factors
Both autism and bipolar disorder are strongly influenced by genetics. Studies have found that some genetic variations are linked to both. For example, changes in the SHANK3 gene have been reported in some people with autism and in some with bipolar disorder. Family studies also suggest that having a close relative with bipolar disorder is linked to a higher likelihood of autism, and the other way around.
Telling autism and bipolar disorder apart can be hard, because some signs overlap. Autistic people may have mood changes and irritability, often in response to stress or sensory overload, which can look like bipolar mood swings. Similarly, autistic social and communication differences can sometimes be mistaken for the withdrawal seen during depressive episodes.
3. Neurobiological Links
Research suggests some similarities in the brain mechanisms involved in autism and bipolar disorder, especially in areas linked to emotion, social behavior and decision-making. Neuroimaging studies have found differences in the prefrontal cortex and amygdala in both groups.
4. Environmental Triggers
Genetics aren’t the whole story. Environmental factors can also play a part. For bipolar disorder, stress, trauma, sleep disruption and some substances can trigger or worsen mood episodes. For autism, some factors during pregnancy are linked to a higher likelihood. These factors don’t necessarily “cause” either condition, but they can affect when and how signs show up.
Can You Be Autistic and Bipolar?
Can you have autism and bipolar disorder at the same time? Yes, and it’s more common than many people realize. Can you be bipolar and autistic? Absolutely: the two are separate diagnoses that can co-occur.
When someone is both autistic and bipolar, getting an accurate diagnosis can take time, because each can mask or mimic the other. Autistic adults are sometimes misdiagnosed with bipolar disorder (especially women and people diagnosed late), and bipolar disorder can be missed in autistic people because mood changes are put down to autism. This applies across the spectrum, including people described as having high-functioning autism and bipolar disorder, who may be diagnosed later because they mask how much they are struggling.
Is Autism a Mood Disorder? Is Bipolar Autism?
No. Autism is not a mood disorder, and bipolar is not a form of autism. Autism is a neurodevelopmental difference that is present from early childhood and stays with a person for life. Its traits are fairly consistent over time. Bipolar disorder is a mood disorder that comes in episodes, with periods of mania, hypomania or depression and often periods of stable mood in between.
Autism or Bipolar? Key Differences
If you’re wondering whether something is autism or bipolar, these differences can help (but always seek a professional assessment):
- Timing: Autistic traits are present from early childhood. Bipolar episodes usually begin in the teens or adulthood and come and go.
- Duration: An autistic meltdown or shutdown usually lasts minutes to hours and follows a trigger, like sensory overload or an unexpected change. A bipolar mood episode lasts days to weeks.
- Sleep: Many autistic people have ongoing sleep difficulties. In mania, people need far less sleep and don’t feel tired.
- Energy and focus: Intense focus on a deep interest is a common autistic trait. In mania, energy, racing thoughts and new plans are a change from the person’s usual self.
- Mood: Autistic people may have strong emotional reactions to stress, but a sustained, unusual high or low mood that is out of character points towards a mood disorder.
If autism and bipolar disorder may both be present, a thorough assessment by experienced professionals is important. This team usually includes psychiatrists, psychologists and developmental pediatricians. Understanding which signs belong to which condition is crucial for accurate diagnosis and the right support.
Challenges in Diagnosing Bipolar and Autism
Telling the mood episodes of bipolar disorder apart from autistic responses to stress can be complex. It takes careful observation over time.
Some autistic people find it hard to put their emotions into words or describe their inner experiences (sometimes called alexithymia), and some communicate without speech. This can make assessment more complex, so clinicians should adapt how they ask questions.
Knowing a person’s usual baseline, including their typical mood, sleep, energy and interests, is the best way to notice changes that may signal a mood disorder.
Treatment Approaches
- Medications: Bipolar disorder is often treated with mood stabilizers, antipsychotics and sometimes antidepressants. Medication should be closely monitored, as autistic people can be more sensitive to side effects. Medication doesn’t treat autism itself.
- Therapies: Cognitive behavioral therapy (CBT), adapted for autistic people, can help with mood and coping. For autism, support focuses on communication, regulation, sensory needs and daily living skills, rather than reducing symptoms of autism. At Autism 360, we use positive behavior support and parent coaching rather than compliance-based approaches.
- Support Systems: A supportive, predictable environment at home and at school is essential. Individual education plans, social and emotional learning, and family therapy can all help people with co-occurring conditions thrive.
Supporting Your Child: Practical Tips for Parents
Supporting a child who is autistic and may also have bipolar disorder can feel overwhelming, but with the right information and strategies, you can help your child flourish. Here are some practical tips:
- Learn About Both Conditions: Educating yourself about autism and bipolar disorder is an important first step. Stay informed about current research and support options.
- Create a Strong Support System: Connect with other parents, organizations and professionals who can offer guidance and emotional support.
- Establish a Structured Routine: Predictability and consistency can reduce anxiety and support stable mood. Set regular times for meals, homework and bedtime, and have a quiet space for downtime. Regular sleep is especially important for mood.
- Keep a Journal to Track Your Child’s Mood and Behavior: Record your child’s mood, sleep, energy and possible triggers. This gives healthcare providers valuable insight, and helps you spot patterns early.
- Foster Communication: Create an environment where your child feels safe to share thoughts and feelings. If spoken communication is hard, try visual aids, emotion cards, social stories or AAC.
- Encourage Healthy Habits: Good sleep, regular meals and physical activity can have a big impact on mood and wellbeing.
- Be an Advocate for Your Child: Work closely with educators, therapists and medical professionals to make sure your child gets the support and adjustments they need.
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Conclusion
The connection between autism and bipolar disorder is complex, but understanding it helps parents support their children better. Knowing the genetic, brain-based and environmental factors involved, and getting a careful assessment, means your child can get the right support for both. Remember that you don’t have to do this alone. Reach out to professionals and support networks who can guide you and your family, and keep building an environment where your child can grow and thrive.
Rachael’s expertise lies in providing tailored interventions to improve the lives of individuals with behavioral challenges. In addition to her role with Autism360, she also enjoys serving as an Adjunct Instructor at Arizona State University, she not only imparts her knowledge but also inspires the next generation of behavior analysts. Rachael’s commitment to education is paralleled by her pursuit of a PsyD in Clinical Psychology, where she’s actively working to deepen her understanding of human behavior. Her friendly and upbeat demeanor, combined with her passion for helping others, make her a valuable asset in the world of behavior analysis and psychology. Rachael is also proud to identify as neurodivergent, bringing a unique perspective and empathy to her work.
