There are six major types of EDS. The different types of EDS are classified according to the signs and symptoms that are manifested. Each type of EDS is a distinct disorder that "runs true" in a family. This means that an individual with Vascular Type EDS will not have a child with Classical Type EDS. More detailed information can be found in our Medical Professionals Section.
General Frequently Asked Questions
Hypermobility (Formerly EDS Type III)
Joint hypermobility is the dominant clinical manifestation. Generalized joint hypermobility that affects large (elbows, knees)and small (fingers and toes) joints is evident in the Hypermobility Type. Recurring joint subluxations and dislocations are common occurrences. Certain joints, such as the shoulder, patella, and temporomandibular joint dislocate frequently. The skin involvement (hyperextensibility and/or smooth velvety skin) as well as bruising tendencies in the Hypermobility Type are present but variable in severity.
Chronic joint and limb pain is a common complaint amongst individuals with the Hypermobility Type. Skeletal X-rays are normal. Musculoskeletal pain is early onset, chronic and may be debilitating. The anatomical distribution is wide and tender points can sometimes be elicited.
To date, no distinctive biochemical collagen finding has been identified by researchers. The Hypermobility Type of EDS is inherited in an autosomal dominant manner.
06 March, 2009
(from EDS National Foundation site)
What is EDS?
Individuals with EDS have a defect in their connective tissue, the tissue that provides support to many body parts such as the skin, muscles and ligaments. The fragile skin and unstable joints found in EDS are the result of faulty collagen. Collagen is a protein, which acts as a "glue" in the body, adding strength and elasticity to connective tissue.
Ehlers-Danlos syndrome (EDS) is a heterogeneous group of heritable connective tissue disorders, characterized by articular (joint) hypermobility, skin extensibility and tissue fragility. There are six major types of EDS. The different types of EDS are classified according to their manifestations of signs and symptoms. Each type of EDS is a distinct disorder that "runs true" in a family. This means that an individual with Vascular Type EDS will not have a child with Classical Type EDS.
What are the symptoms of EDS?
Clinical manifestations of EDS are most often joint and skin related and may include:
Joints: joint hypermobility; loose/unstable joints which are prone to frequent dislocations and/or subluxations; joint pain; hyperextensible joints (they move beyond the joint's normal range); early onset of osteoarthritis.
Skin: soft velvetâ-like skin; variable skin hyper-extensibility; fragile skin that tears or bruises easily (bruising may be severe); severe scarring; slow and poor wound healing; development of molluscoid pseudo tumors (fleshy lesions associated with scars over pressure areas).
Miscellaneous/Less Common: chronic, early onset, debilitating musculoskeletal pain (usually associated with the Hypermobility Type); arterial/intestinal/uterine fragility or rupture (usually associated with the Vascular Type); Scoliosis at birth and scleral fragility (associated with the Kyphoscoliosis Type); poor muscle tone (associated with the Arthrochalasia Type); mitral valve prolapse; and gum disease.
What are the types of EDS?
There are six major types of EDS. The different types of EDS are classified according to the signs and symptoms that are manifested. Each type of EDS is a distinct disorder that "runs true" in a family. An individual with Vascular Type EDS will not have a child with Classical Type EDS. Learn more about the different types of EDS.
How is EDS diagnosed?
The categorization of the Ehlers-Danlos syndromes began in the late 1960's and was formalized in the Berlin nosology. Over time, it became apparent that the diagnostic criteria established and published in 1988 did not discriminate adequately between the different types of the Ehlers-Danlos syndrome or between the Ehlers-Danlos syndrome and other phenotypically related conditions. Learn more about the EDS nosology and how EDS is diagnosed.
How prevalent is EDS?
At this time, research statistics of EDS show the prevalence as 1 in 5,000. It is known to affect both males and females of all racial and ethnic backgrounds.
How is EDS inherited?
The two known inheritance patterns for EDS include autosomal dominant and autosomal recessive. Specifics regarding genetic inheritance may be found by following the link below. Regardless of the inheritance pattern, we have no choice in which genes we pass on to our children. Read more about hereditary patterns.
What is the prognosis of someone with EDS?
The prognosis of EDS depends on the specific type. Life expectancy can be shortened with the Vascular Type of EDS due to the possibility of organ and vessel rupture. Life expectancy is usually not affected in the other types.
What can I do now?
The defining trait of those affected by EDS is the search for information. The rise in Internet usage in the last few years has delivered a significant benefit to families affected by EDS. EDNF members are sharing information on-line and learning from each other in ways that were impossible a decade ago. Learn more about the benefits of EDNF membership.
What is EDS?
Individuals with EDS have a defect in their connective tissue, the tissue that provides support to many body parts such as the skin, muscles and ligaments. The fragile skin and unstable joints found in EDS are the result of faulty collagen. Collagen is a protein, which acts as a "glue" in the body, adding strength and elasticity to connective tissue.
Ehlers-Danlos syndrome (EDS) is a heterogeneous group of heritable connective tissue disorders, characterized by articular (joint) hypermobility, skin extensibility and tissue fragility. There are six major types of EDS. The different types of EDS are classified according to their manifestations of signs and symptoms. Each type of EDS is a distinct disorder that "runs true" in a family. This means that an individual with Vascular Type EDS will not have a child with Classical Type EDS.
What are the symptoms of EDS?
Clinical manifestations of EDS are most often joint and skin related and may include:
Joints: joint hypermobility; loose/unstable joints which are prone to frequent dislocations and/or subluxations; joint pain; hyperextensible joints (they move beyond the joint's normal range); early onset of osteoarthritis.
Skin: soft velvetâ-like skin; variable skin hyper-extensibility; fragile skin that tears or bruises easily (bruising may be severe); severe scarring; slow and poor wound healing; development of molluscoid pseudo tumors (fleshy lesions associated with scars over pressure areas).
Miscellaneous/Less Common: chronic, early onset, debilitating musculoskeletal pain (usually associated with the Hypermobility Type); arterial/intestinal/uterine fragility or rupture (usually associated with the Vascular Type); Scoliosis at birth and scleral fragility (associated with the Kyphoscoliosis Type); poor muscle tone (associated with the Arthrochalasia Type); mitral valve prolapse; and gum disease.
What are the types of EDS?
There are six major types of EDS. The different types of EDS are classified according to the signs and symptoms that are manifested. Each type of EDS is a distinct disorder that "runs true" in a family. An individual with Vascular Type EDS will not have a child with Classical Type EDS. Learn more about the different types of EDS.
How is EDS diagnosed?
The categorization of the Ehlers-Danlos syndromes began in the late 1960's and was formalized in the Berlin nosology. Over time, it became apparent that the diagnostic criteria established and published in 1988 did not discriminate adequately between the different types of the Ehlers-Danlos syndrome or between the Ehlers-Danlos syndrome and other phenotypically related conditions. Learn more about the EDS nosology and how EDS is diagnosed.
How prevalent is EDS?
At this time, research statistics of EDS show the prevalence as 1 in 5,000. It is known to affect both males and females of all racial and ethnic backgrounds.
How is EDS inherited?
The two known inheritance patterns for EDS include autosomal dominant and autosomal recessive. Specifics regarding genetic inheritance may be found by following the link below. Regardless of the inheritance pattern, we have no choice in which genes we pass on to our children. Read more about hereditary patterns.
What is the prognosis of someone with EDS?
The prognosis of EDS depends on the specific type. Life expectancy can be shortened with the Vascular Type of EDS due to the possibility of organ and vessel rupture. Life expectancy is usually not affected in the other types.
What can I do now?
The defining trait of those affected by EDS is the search for information. The rise in Internet usage in the last few years has delivered a significant benefit to families affected by EDS. EDNF members are sharing information on-line and learning from each other in ways that were impossible a decade ago. Learn more about the benefits of EDNF membership.
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