How do you get EDS? Print E-mail
There are two different inheritance patterns of EDS. They are known as autosomal dominant and autosomal recessive. It is important to remember that regardless of the pattern of inheritance, we have no control over which genes we pass on to our children.

Autosomal Dominant

In Autosomal Dominant inheritance, only one gene from the parent needs to be
functioning improperly for an individual to be affected. When an affected person has children, there is a 50% chance with each pregnancy that the parent will pass on the changed gene to his/her children. Therefore there is a 50–50 chance that the child will be affected, regardless of the sex of the child. A person who does not carry the changed gene is not affected and can not pass the gene on to his/her children. EDS types that are inherited in the autosomal dominant fashion include the Classical Type, Hypermobility Type, Vascular Type, and Arthrochalasia Type. Most cases od EDS seem to follow the autsomal dominant pattern of inheritance.

Autosomal Recessive

In Autosomal Recessive inheritance, the parent must carry both changed genes to be affected. A person who has one working gene and one non–working (changed) gene is said to be a gene carrier. When two people who carry the same recessive gene in common have children, there is a 25% chance that the child will have two working genes and be unaffected; a 50% chance that the child will be a gene carrier like his/her parents; and a 25% chance that the child will carry both recessive genes and be affected. These percentage risks apply to each pregnancy. Types of EDS which are inherited as autosomal recessive are the Kyphoscoliosis Type and the Dermatosparaxis Type, but are uncommonly seen types of EDS.
 
 

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