Anxiety is one of the most common mental health concerns reported by autistic people, and it can have a substantial effect on quality of life. Studies have found that autistic people may report lower quality of life than non-autistic people, with anxiety identified as one important contributing factor (Lin et al., 2024).
Anxiety is usually defined as excessive fear or worry. For autistic people, however, anxiety often needs to be understood in relation to the person’s sensory environment, need for predictability, communication access, social safety, and previous life experiences. Anxiety may interact with autistic characteristics such as sensory sensitivities, intolerance of uncertainty, and differences in social communication, making everyday tasks, social participation, school, work, and self-care more difficult to access or sustain (Recio et al., 2024; Guerrera et al., 2022).
In clinical practice, we assess anxiety across four interacting components: thoughts, physiology, behaviour, and subjective feelings. When anxiety is high, all four may be affected. Anxiety can change sleep, appetite, energy, concentration, sensory tolerance, communication, flexibility, and capacity to participate in daily life. For some autistic people, anxiety is visible to others, for example, we notice changes in their breathing, facial expression, tone of voice, movement, or behaviour. For others, anxiety is less visible, hidden, or expressed in ways that others may not recognise as anxiety. Sometimes anxiety is not attended to until the person reaches exhaustion, shutdown, meltdown, or withdrawal.
Autistic people may also have higher exposure to stressful or adverse life experiences, including victimisation, unemployment, social exclusion, and financial hardship. These experiences can increase anxiety and reduce life satisfaction and quality of life (Griffiths et al., 2019). Supporting anxiety therefore involves more than reducing symptoms. It also involves improving safety, access, predictability, connection, and quality of life.
Autistic people experience many forms of anxiety that overlap with non-autistic anxiety. This can include general worry, panic, social anxiety, phobias, avoidance, and physical symptoms such as racing heart, muscle tension, nausea, headaches, and exhaustion.
However, research and clinical experience suggest that anxiety may also have autistic-specific features. Autistic people may report particular concerns about uncertainty, sensory environments, unexpected change, social mistakes, unclear expectations, and situations where they are unsure how they will be perceived by others (Petty et al., 2023; Black et al., 2024).
For some autistic people, anxiety may be difficult to identify, communicate, or express verbally. This may be especially true when alexithymia is present. Alexithymia refers to difficulty identifying and describing one’s own emotions. When alexithymia is present, a person may know that something feels wrong, overwhelming, unsafe, or physically uncomfortable, but may not immediately recognise the experience as anxiety.
In clinical practice, autistic anxiety may be expressed through:
These presentations should not be interpreted as “behaviour problems” in isolation. They may be signs that the person’s nervous system is under excessive demand. Understanding anxiety in autistic people requires careful attention to context, sensory load, communication demands, uncertainty, and the person’s history of social and environmental safety.
Anxiety can affect many areas of daily life for autistic people. Research indicates that anxiety is associated with lower quality of life across psychological, social, and physical health domains. Some studies suggest that anxiety may predict reduced quality of life more strongly than autistic characteristics alone, although anxiety should also be considered alongside depression, sensory experiences, environmental demands, and social support (Adams et al., 2019; Lin et al., 2024; Thiel et al., 2024).
For children and young people, anxiety may reduce school participation, social participation, and daily living skills (Adams et al., 2019; Ambrose et al., 2022). For adults, anxiety may affect employment, relationships, independent living, healthcare access, community participation, and capacity to manage everyday responsibilities.
In clinical practice, we often see anxiety reducing a person’s capacity to access, initiate, sustain, or complete everyday tasks. A task that appears simple to others may involve multiple hidden demands for the autistic person. For example, attending an appointment may require managing transport, sensory environments, social interaction, time pressure, uncertainty, waiting rooms, unclear instructions, and the need to explain personal information to someone unfamiliar.
Anxiety may also affect families and support networks. When an autistic person is highly anxious, family members may need to provide more emotional support, planning, advocacy, reassurance, and environmental adjustment. Research has linked anxiety with outward signs of distress and increased family stress (Guerrera et al., 2022). A neurodiversity affirming approach recognises both the autistic person’s distress and the need for families and supporters to receive guidance that is practical, respectful, and sustainable.
Worry and intolerance of uncertainty can also affect daily life and mental health (Black et al., 2024). If a person repeatedly avoids uncertain situations, they may have fewer opportunities for enjoyment, independence, learning, friendship, work, and community participation. Avoidance may reduce anxiety in the short term but can sometimes make life smaller over time.
These themes will be explored further in our upcoming webcast, Autistic Anxiety, on 18 September 2026. The session will examine current research on autism, ADHD, anxiety and trauma, including why anxiety can be so high for autistic and ADHD individuals, how anxiety and trauma may present differently, and how clinicians, families and autistic people themselves can provide support that is practical, respectful and neurodiversity affirming. We will also consider how to respond to meltdowns and shutdowns, and how therapy can be adapted to support neurodivergent people experiencing problematic levels of anxiety.
Adams, D., Clark, M., & Keen, D. (2019). Using self-report to explore the relationship between anxiety and quality of life in children on the autism spectrum. Autism Research, 12(10), 1505-1515. DOI: 10.1002/aur.2155
Ambrose, K., Simpson, K., & Adams, D. (2022). The impact of anxiety on the participation of children on the autism spectrum. Journal of Autism and Developmental Disorders, 52(7), 2958-2969. DOI: 10.1007/s10803-021-05162-x
Black, M. H., Greenwood, D. L., Hwa, J. C. C., Pivac, J., Tang, J., & Clarke, P. J. F. (2024). What are you worried about? Content and extent of worry in autistic adults. Journal of Autism and Developmental Disorders, 54(5), 2040-2054. DOI: 10.1007/s10803-023-05963-2
Griffiths, S., Allison, C., Kenny, R., Holt, R., Smith, P., & Baron-Cohen, S. (2019). The Vulnerability Experiences Quotient (VEQ): A study of vulnerability, mental health and life satisfaction in autistic adults. Autism Research, 12(10), 1516-1528. DOI: 10.1002/aur.2162
Guerrera, S., Pontillo, M., Tata, M. C., Di Vincenzo, C., Bellantoni, D., Napoli, E., Valeri, G., & Vicari, S. (2022). Anxiety in autism spectrum disorder: Clinical characteristics and the role of the family. Brain Sciences, 12(12), Article 1597. DOI: 10.3390/brainsci12121597
Lin, C.-Y., Wu, Y.-L., Chien, Y.-L., & Gau, S. S.-F. (2025). Quality of life and clinical correlates in cognitively-able autistic adults: A special focus on sensory characteristics and perceived parental support. Journal of the Formosan Medical Association, 124(2), 157-163. DOI: 10.1016/j.jfma.2024.03.022
Petty, S., Lambarth, S., & Hamilton, L. G. (2025). Rethinking anxiety and depression for autistic adults through personal narratives: A mixed-method analysis of blog data. Counselling and Psychotherapy Research, 25(1), Article e12729. DOI: 10.1002/capr.12729
Recio, P., Pozo, P., García-López, C., & Sarriá, E. (2024). Autistic sensory traits and psychological distress: Mediating role of worry and intolerance of uncertainty. Brain Sciences, 14(11), Article 1088. DOI: 10.3390/brainsci14111088
Thiel, T., Riedelbauch, S., Gaigg, S. B., Roessner, V., & Ring, M. (2024). The impact of depressive and anxious symptoms on quality of life in adults on the autism spectrum. Autism Research, 17(6), 1161-1174. DOI: 10.1002/aur.3144
