Turner's syndrome is a genetic abnormality where the affected individual has only one X chromosome (XO), instead of having XX as a normal female or XY as a normal male. It is named for Henry Turner, a doctor who first described this condition in 1938. 1 in about 2,000 females born have Turner's syndrome.
Individuals with Turner's syndrome physically have the appearance of girls but usually have short stature.
Their secondary sex characteristics (breasts, pubic hair) are poorly developed. Ovaries fail to develop properly causing them to be sterile (although their wombs are intact so they can bear children with donated eggs).
Intelligence is normal to slightly reduced although problems with maths and visuo-spatial problems seems to be a common thread.
Abnormalities such as coarctation of the aorta and kidney abnormalities are more common in girls with Turner's.
Eponymous syndromes metanode