Updated by: Arabinda Naik
Henry H. Turner first describe this genetic disorder. The chromosome number is 45 (44+X0). It is caused by the absence of one X chromosome in female. When an abnormal ovum without X chromosome fused with a normal sperm having X chromosome a female individual is formed having 45 chromosomes. These are sterile female incapable of reproduction with poorly developed ovaries, underdeveloped breast, small uterus, and abnormal intelligence. They have webbed neck and broad chest, cardiovascular abnormalities, and hearing impairment. They may not menstruate or ovulate.one in every 3000 female births is a victim.