Turner Syndrome occurs when an individual has a karyotype of 45,X (or 45,XO). Girls and women with Turner Syndrome typically have ovaries that don’t function well, resulting in a lack of menses, and infertility.

Genetic Information from: NIH, National Library of Medicine, Genetics Home Reference https://ghr.nlm.nih.gov/condition

https://ghr.nlm.nih.gov/condition/turner-syndrome

• Turner phenotype with normal karyotype, see Noonan syndrome
• Turner syndrome in female with XX chromosomes, see Noonan syndrome
• Turner’s syndrome, see Turner syndrome
• Turner-like syndrome, see Noonan syndrome