Triple X syndrome

47,XXX; Triplo X syndrome; Trisomy X; XXX syndrome

Some of the information in this article or section has not been verified and might not be reliable. It should be checked for inaccuracies and modified as needed, citing sources. Triple X syndrome is a chromosomal variation characterized by the presence of an extra X chromosome in each cell of a human female. The condition is also known as triplo-X, trisomy X, XXX syndrome, and 47,XXX aneuploidy. Triple X results during division of a parent's reproductive cells. Females with the condition ar ...