Autism

Autism and Ehlers-Danlos Syndrome: What’s the Connection?

Autism and Ehlers-Danlos syndrome overlap far more than most parents realize. Learn the surprising connection, the shared signs, and what it means for care.

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Autism and Ehlers-Danlos Syndrome: What’s the Connection?

Reviewed by Dr. Eva Lassey, PT, DPT · Last updated August 25, 2026

Key Takeaways

  • Autistic individuals are significantly more likely to have joint hypermobility and to be diagnosed with Ehlers-Danlos syndrome (EDS) than the general population, though the exact reason for this link is still being investigated.
  • Ehlers-Danlos syndromes are a group of more than a dozen inherited disorders that affect connective tissues such as skin, joints, and blood vessel walls, with Hypermobile EDS (hEDS) being the most common form.
  • Researchers have proposed several theories for the autism-EDS overlap, including shared genetic pathways, proprioceptive dysfunction from hypermobile joints, and the way chronic pain and physical instability can worsen sensory sensitivities and anxiety.
  • When autism and EDS co-occur, one condition often overshadows the other, so a child's clumsiness may be blamed on autism when it actually stems from unstable joints, or social anxiety from EDS pain may be mistaken for autistic social awkwardness.
  • Managing both conditions calls for an integrated approach: an informed care team, tailored low-impact physical therapy that stabilizes joints, supportive braces or mobility aids, a sensory-friendly environment, and pacing to conserve energy.

Two different claims, with different evidence behind them. That people diagnosed with EDS are more likely to be autistic rests on a Swedish national register study of 1,771 people with EDS, which found autism at a risk ratio of 7.4 against matched comparisons — strong, and cited below. That joint hypermobility on its own tracks with autism is less settled: when 207 eleven-year-olds were examined at a routine school health check rather than recruited through a clinic, no association with neurodevelopmental problems was found. Much of the supporting work comes from clinic and survey samples, where people who have sought a diagnosis for one thing are more likely to have sought one for the other. The overlap is real and worth knowing about; the size of it in the general population is not settled.

On the surface, autism and Ehlers-Danlos syndrome (EDS) might seem like two entirely unrelated conditions. One is a neurodevelopmental condition affecting social interaction, communication, and behavior, while the other is a group of genetic disorders affecting the body’s connective tissues. However, a growing body of research and countless personal stories from within the communities themselves are revealing a surprising and significant overlap. Many individuals find themselves navigating the dual challenges of both conditions.

If you or a loved one have been diagnosed with one of these conditions and suspect the other might also be present, you are not alone. The journey of living with chronic pain, joint instability, and sensory sensitivities can be complex and isolating. Understanding the potential connection between autism and EDS is a vital step toward receiving a correct diagnosis, finding comprehensive care, and developing effective management strategies that address both the brain and the body.

This guide will explore what Ehlers-Danlos syndrome is, delve into the scientific theories behind its link to autism, outline the unique challenges faced by those with both conditions, and offer practical tips for managing symptoms and improving quality of life.

What Is Ehlers-Danlos Syndrome?

Ehlers-Danlos syndromes (EDS) are a group of more than a dozen inherited disorders that affect connective tissues—primarily your skin, joints, and blood vessel walls. Connective tissue is made up of proteins, most notably collagen, that provide strength and elasticity to the body’s structures. In people with EDS, a genetic defect causes this collagen to be weaker, more fragile, or too stretchy.

The most common form is Hypermobile Ehlers-Danlos syndrome (hEDS). While each type of EDS has its own set of clinical criteria, common signs and symptoms across the different types include:

  • Joint Hypermobility: Joints that have an unusually large range of motion, often described as being “double-jointed.” This can lead to frequent joint dislocations and subluxations (partial dislocations).
  • Skin Hyperextensibility: Soft, velvety-feeling skin that is unusually stretchy and fragile. It may bruise easily, and wounds may be slow to heal, often resulting in wide, atrophic scars.
  • Chronic Pain: Widespread musculoskeletal pain is a hallmark symptom, often affecting the joints and muscles.
  • Autonomic Dysfunction: Many with EDS also experience issues with the autonomic nervous system, which controls automatic body functions. This can lead to conditions like Postural Orthostatic Tachycardia Syndrome (POTS), causing dizziness, lightheadedness, and a rapid heart rate upon standing.

How Autism and EDS Are Linked

The connection between autism and joint hypermobility was first noted in medical literature decades ago, but only recently has it gained significant attention. Several studies have now confirmed that autistic individuals are significantly more likely to have hypermobility and to be diagnosed with EDS than the general population. The exact reason for this link is still under investigation, but researchers have proposed several compelling theories.

  1. Shared Genetic Roots: The most direct theory is that there may be shared genetic pathways that contribute to both conditions. The genes responsible for collagen formation and neurological development might be linked in ways we are just beginning to understand. A disruption in one area could have a cascading effect on the other.
  2. Proprioceptive Dysfunction: Proprioception is our “sixth sense”—the body’s ability to perceive its own position in space. It relies on receptors in our muscles and joints. In individuals with hypermobile joints due to EDS, the feedback from these receptors can be weak or distorted. This poor proprioceptive input can affect motor planning and body awareness, which are also areas of challenge for many autistic people. It is theorized that the brain’s difficulty in processing this faulty sensory information may contribute to autistic traits.
  3. Chronic Pain and Sensory Overload: Living with the chronic pain, fatigue, and physical instability of EDS is a constant source of stress on the nervous system. This state of persistent physiological distress can exacerbate sensory sensitivities and anxiety, which are core features of autism. The internal “noise” from the body’s pain and discomfort can make it much harder to process external sensory information, leading to overload and social withdrawal.

Challenges Faced by Individuals with Both Conditions

When autism and EDS co-occur, they create a unique and complex set of challenges that can be difficult for others to understand.

  • Diagnostic Overshadowing: One condition often overshadows the other. An autistic child’s clumsiness might be dismissed as a motor planning issue related to autism, when it’s actually due to hypermobile, unstable joints. Conversely, the social anxiety experienced by someone with EDS (due to pain and fatigue) might be misattributed to social awkwardness without considering the possibility of underlying autism.
  • Interoception Difficulties: Interoception is the sense of the internal state of the body (e.g., hunger, pain, body temperature). Many autistic people struggle with interoception. When combined with the chronic and widespread pain of EDS, it can be incredibly difficult to identify, locate, and describe pain accurately, which can delay proper medical care.
  • Misinterpretation of Behaviors: Stimming (self-stimulatory behavior) is a common way for autistic people to self-regulate. Some stims, like rocking or applying deep pressure, might also be subconscious attempts to stabilize unstable joints or manage proprioceptive confusion. These behaviors can be misunderstood by those unaware of the dual diagnosis.
  • Navigating the Medical System: The healthcare system is often siloed. A person may see a rheumatologist for their EDS and a psychologist for their autism, with little communication between the two. This can lead to fragmented care that fails to address the person as a whole.

Tips for Managing Symptoms

Managing co-occurring autism and EDS requires an integrated approach that supports both the physical and neurological needs of the individual.

  1. Seek an Integrated Care Team: Whenever possible, find healthcare providers who are knowledgeable about the autism-EDS link or are at least willing to learn and collaborate. A good team might include a knowledgeable primary care doctor, a rheumatologist, a physical therapist, an occupational therapist, and a mental health professional.
  2. Prioritize Low-Impact Physical Therapy: Physical therapy is crucial for EDS, but it must be tailored. The goal is to stabilize the joints by strengthening the supporting muscles without overstretching them. Activities like swimming, Pilates, and isometric exercises are often recommended.
  3. Use Mobility Aids and Braces: There is no shame in using tools that help. Braces, splints, or kinesiology tape can provide support to unstable joints, reduce pain, and improve proprioceptive feedback. Mobility aids like a cane or wheelchair can conserve energy and prevent injury.
  4. Create a Sensory-Friendly Environment: Manage your “sensory diet” just as you manage your nutritional diet. Use noise-canceling headphones, sunglasses, and comfortable clothing to reduce sensory overload. This frees up neurological resources that would otherwise be spent coping with a stressful environment.
  5. Pacing and Energy Conservation: Both conditions can cause significant fatigue. Learn to pace yourself. The “spoon theory” is a useful model for understanding and managing limited energy reserves. Break tasks into smaller chunks and schedule rest periods throughout your day.

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Frequently Asked Questions

What is POTS and how is it related to EDS?

Postural Orthostatic Tachycardia Syndrome (POTS) is a form of autonomic dysfunction common in people with EDS. It causes a large increase in heart rate upon standing, leading to symptoms like dizziness, fainting, and fatigue, and managing it is often a key part of managing EDS.

How do you get diagnosed with Ehlers-Danlos syndrome?

Start by talking to your primary care doctor, who can refer you to a rheumatologist or a geneticist specializing in connective tissue disorders. Diagnosis often involves a physical exam using the Beighton score to assess joint hypermobility along with a review of other clinical criteria.

Can occupational therapy help with both autism and EDS?

Yes. Occupational therapy is uniquely suited to address both conditions, helping with pain management, energy conservation techniques like pacing, joint protection strategies, and creating a sensory diet to manage sensory sensitivities.

Is my child autistic just because they have hypermobile joints?

No. Joint hypermobility is relatively common in the general population, and although there is a strong correlation, having hypermobile joints does not mean a person is autistic, just as not all autistic people are hypermobile. It is the combination of symptoms and their impact on daily functioning that matters.

Why does my autistic child seem to have so much trouble describing where it hurts?

Many autistic people struggle with interoception, the sense of the body's internal state such as hunger, pain, and temperature. Combined with the chronic, widespread pain of EDS, this can make it very difficult to identify, locate, and describe pain accurately, which may delay proper medical care.

Sources

  1. Cederlöf M, Larsson H, Lichtenstein P, Almqvist C, Serlachius E, Ludvigsson JF. "Nationwide population-based cohort study of psychiatric disorders in individuals with Ehlers-Danlos syndrome or hypermobility syndrome and their siblings." BMC Psychiatry, 2016. The strongest evidence for the link on this page: 1,771 people with EDS in the Swedish national registers matched against 17,710 comparisons, with autism spectrum disorder at a risk ratio of 7.4 (95% CI 5.2 to 10.7) and ADHD at 5.6 (4.2 to 7.4). doi.org/10.1186/s12888-016-0922-6
  2. Glans MR, Aziz A, Kindgren E, Knez R, Landgren M, Landgren V. "No association between joint hypermobility, musculoskeletal pain and neurodevelopmental problems in a school-based sample." BJPsych Open, 2025. The counterweight, and the reason the note above separates the two claims: in 207 eleven-year-olds examined at a routine school health check, generalized joint hypermobility showed no association with neurodevelopmental problems. doi.org/10.1192/bjo.2025.10881
  3. Crompton CJ, Efthimiou TN, Dockrell DM, Berg KM. "Health experiences and outcomes of autistic and non-autistic adults with hypermobile Ehlers-Danlos syndrome and hypermobility spectrum disorders." BMC Medicine, 2026. 1,754 adults with hEDS or HSD, around a quarter of them autistic, on how being autistic changes the diagnostic experience — which is the section of this page about one condition overshadowing the other. doi.org/10.1186/s12916-026-04713-2

Disclaimer. This page is for general educational purposes and does not constitute medical advice, diagnosis, or treatment.