Turner Syndrome

(also known as X0 syndrome, 45X0).

This syndrome was first fully described in 1938 by Dr H Turner. It is due to the inheritance of only a single sex (female) chromosome.

Unlike Down, Edwards or Patua syndrome, the risk of having a child with Turner syndrome is not related to the age of the mother and there is no apparent incease in the risk of having a further affected pregnancy. There is a birth incidence of 1:5000 but the majority of cases result in miscarriage or are stillborn.

Individuals with Turner syndrome are female and are short in height, have a lower IQ than their siblings and are sterile.