Ehlers-Danlos Syndromes
Ehlers-Danlos syndrome, swallowing, and communication
Medical Speech Pathology understands the complex and often under-recognised swallowing, voice, breathing, and communication challenges experienced by individuals with Ehlers-Danlos Syndrome (EDS).
The Ehlers-Danlos syndromes are a group of 13 heritable connective tissue disorders, each with distinct diagnostic criteria and clinical features. While EDS is commonly associated with joint hypermobility, pain, and fatigue, its impact on the orofacial system, swallowing, respiration, and voice is frequently overlooked.
For many individuals with EDS, subtle but persistent impairments in oral posture, muscle coordination, breathing patterns, swallowing efficiency, and voice use can significantly affect nutrition, communication, social participation, and quality of life.
Why EDS affects swallowing, voice, and orofacial function
Connective tissue plays a critical role in structural stability, force transmission, proprioception, and endurance. In EDS, connective tissue differences can disrupt multiple systems simultaneously, including the orofacial muscles and joints, the larynx and vocal folds, respiratory support for speech and swallowing, and the sensory feedback required for coordinated motor control. As a result, individuals with EDS often experience multifactorial swallowing and voice difficulties rather than a single isolated impairment.
Swallowing in EDS
Dysphagia (difficulty swallowing) is commonly reported in people with EDS and may arise from several interacting factors.
- Connective tissue laxity and weakness can impair the generation and transmission of pressure required for effective chewing and bolus propulsion. Hypermobility and instability of the temporomandibular joint (TMJ), cervical spine, and hyoid–laryngeal complex may compromise bolus control, swallow initiation, and airway protection.
- Oropharyngeal dysphagia may occur due to impaired tongue control, reduced pharyngeal strength, altered laryngeal elevation, or discoordinated swallow timing. Individuals may experience choking, coughing, food residue, globus sensation, or aspiration.
- Gastro-oesophageal reflux disease (GORD), which is more prevalent in EDS, can contribute to oesophageal irritation, altered sensation, pain during swallowing, and secondary laryngeal symptoms.
- Generalised fatigue, jaw pain, cervical discomfort, and postural instability may further reduce swallowing endurance and consistency across meals.
- Autonomic dysfunction (including POTS and other forms of dysautonomia), which is highly prevalent in EDS, may further disrupt swallowing through impaired regulation of salivation, oesophageal motility, reflux control, and respiratory–swallow coordination. Fluctuating autonomic symptoms such as tachycardia, dizziness, fatigue, and presyncope can reduce swallowing endurance and consistency, contributing to variable swallow safety across meals.
Medical Speech Pathology advocates for instrumental swallowing assessment (videofluoroscopy or endoscopic evaluation) where clinically indicated, to accurately identify the physiological drivers of dysphagia and guide safe, individualised management.
Voice, breathing, and laryngeal function in EDS
Voice disorders are commonly reported in people with EDS and often reflect a combination of connective tissue laxity and nervous system involvement. Reduced tissue stiffness may affect vocal fold closure and tension, while laryngeal, cervical, and thoracic instability can compromise efficient voice production. Respiratory inefficiency related to autonomic dysfunction, deconditioning, or fatigue, along with reflux-related laryngeal irritation, may further contribute to voice symptoms.
Individuals may experience hoarseness, vocal fatigue, breathiness, reduced vocal strength or projection, pitch instability, effortful voice production, or difficulty sustaining voice use across the day.
Assessment focuses on the integrated relationship between laryngeal function, breathing, posture, endurance, and sensory feedback, rather than voice output in isolation, to identify the underlying physiological drivers of vocal difficulty and guide targeted management.
Orofacial myofunctional considerations in EDS
Orofacial myofunctional differences are increasingly recognised in the EDS population and may include altered tongue resting posture and mobility, reduced lip seal and facial muscle endurance, mouth breathing or compensatory breathing patterns, atypical swallowing patterns, and TMJ instability or bruxism.
These patterns reflect system-level interactions between connective tissue integrity, neuromuscular control, sensory processing, and learned motor behaviours. In EDS, therapy must be carefully modified to account for tissue fragility, fatigue, pain sensitivity, and autonomic load.
Our approach at Medical Speech Pathology
Medical Speech Pathology provides specialised, EDS-informed assessment and intervention that integrates detailed clinical and instrumental evaluation, orofacial myofunctional assessment where indicated, and fatigue-aware, sensory-informed treatment planning.
We work collaboratively with ENT specialists, dietitians, physiotherapists, other Allied Health professionals and EDS-aware medical teams to support safe, sustainable outcomes that prioritise participation and quality of life.
Professional leadership and collaboration
Melissa is part of an international group of Speech Pathologists contributing to research and emerging consensus guidelines for the management of swallowing and communication in EDS. She is also involved in an ENT consortium under the Ehlers-Danlos Society, supporting interdisciplinary collaboration and evidence-informed practice in this area.
Our team regularly participates in the EDS ECHO program, Global Learning Conferences, and ongoing professional development focused on EDS and Hypermobility Spectrum Disorders (HSD).
Further information
For more information about Ehlers-Danlos Syndrome, visit the Ehlers-Danlos Society at
https://www.ehlers-danlos.com