raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:881

Turner syndrome

Synonyms: 45,X syndrome · 45,X/46,XX syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Not applicable, Unknown
Age of onset
Antenatal, Childhood, Infancy, Neonatal
Status
active

A rare chromosomal anomaly syndrome characterized by complete or partial loss of an X chromosome in phenotypic females, clinically manifesting with short stature, primary ovarian insufficiency as well as cardiovascular, renal, liver, autoimmune diseases, hearing loss and neurocognitive abnormalities.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enTurner syndrome45,X syndrome · 45,X/46,XX syndrome
frSyndrome de TurnerSyndrome 45,X · Syndrome 45,X/46,XX
deTurner-Syndrom45,X-Syndrom · 45,X/46,XX-Syndrom · UTS · Ullrich-Turner-Syndrom
esSíndrome de TurnerSíndrome 45,X · Síndrome 45,X/46,XX
itSindrome di TurnerSindrome 45,X · Sindrome 45,X/46,XX
nlSyndroom van Turner45,X-syndroom · 45,X/46,XX-syndroom
ptSíndrome TurnerMonossomia X
plZespół TurneraZespół 45,X · Zespół 45,X/46,XX
csTurnerův syndrom45,X syndrom · 45,X/46,XX syndrom · Monozomie X
ukСиндром ТернераСиндром 45,X · Синдром 45,X/46,XX
zh特纳综合征45,X/46,XX综合征
trTurner sendromu45,X sendromu · 45,X / 46,XX sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q96.0BTNTspecificvalidated
ICD-10Q96.1BTNTspecificvalidated
ICD-10Q96.2BTNTspecificvalidated
ICD-10Q96.3BTNTspecificvalidated
ICD-10Q96.4BTNTspecificvalidated
ICD-10Q96.8BTNTspecificvalidated
ICD-10Q96.9BTNTspecificvalidated
ICD-11LD50.0Especificvalidated
MONDO0019499Evalidated
MeSHD014424Evalidated
UMLSC0041408Evalidated
GARD7831Evalidated
MedDRA10045181Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (12):

Children (3):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

23 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 100 0005.5 / 100 000EuropeValue and classValidatedEUROCAT European surveillance of congenital anomalies 1985-2010[OTHER]
Prevalence at birth1-9 / 100 0007.5 / 100 000AustriaValue and classValidatedEUROCAT European surveillance of congenital anomalies 1985-2009[OTHER]
Prevalence at birth1-9 / 100 0007.9 / 100 000BelgiumValue and classValidatedEUROCAT European surveillance of congenital anomalies 1980-2010[OTHER]
Prevalence at birth1-5 / 10 00010.5 / 100 000BulgariaValue and classValidatedEUROCAT European surveillance of congenital anomalies 1996-1999[OTHER]
Prevalence at birth1-9 / 100 0003.6 / 100 000CroatiaValue and classValidatedEUROCAT European surveillance of congenital anomalies 1983-2010[OTHER]
Prevalence at birth1-5 / 10 00010.4 / 100 000DenmarkValue and classValidatedEUROCAT European surveillance of congenital anomalies 1980-2010[OTHER]
Prevalence at birth1-9 / 100 0007.1 / 100 000FranceValue and classValidatedEUROCAT European surveillance of congenital anomalies 1980-2010[OTHER]
Prevalence at birth1-9 / 100 0008 / 100 000GermanyValue and classValidatedEUROCAT European surveillance of congenital anomalies 1987-2010[OTHER]
Prevalence at birth1-9 / 100 0003.2 / 100 000HungaryValue and classValidatedEUROCAT European surveillance of congenital anomalies 1998-2010[OTHER]
Prevalence at birth1-9 / 100 0007.1 / 100 000IrelandValue and classValidatedEUROCAT European surveillance of congenital anomalies 1980-2010[OTHER]
Prevalence at birth1-9 / 100 0003.4 / 100 000ItalyValue and classValidatedEUROCAT European surveillance of congenital anomalies 1980-2010[OTHER]
Prevalence at birth1-9 / 100 0001.1 / 100 000MaltaValue and classValidatedEUROCAT European surveillance of congenital anomalies 1986-2009[OTHER]
Prevalence at birth1-5 / 10 00014 / 100 000NetherlandsValue and classValidatedEUROCAT European surveillance of congenital anomalies 1981-2010[OTHER]
Prevalence at birth1-9 / 100 0004.2 / 100 000NorwayValue and classValidatedEUROCAT European surveillance of congenital anomalies 1999-2010[OTHER]
Prevalence at birth1-9 / 100 0003.6 / 100 000PolandValue and classValidatedEUROCAT European surveillance of congenital anomalies 1999-2010[OTHER]
Prevalence at birth1-9 / 100 0002.8 / 100 000PortugalValue and classValidatedEUROCAT European surveillance of congenital anomalies 1990-2010[OTHER]
Prevalence at birth1-9 / 100 0002.8 / 100 000SpainValue and classValidatedEUROCAT European surveillance of congenital anomalies 1980-2009[OTHER]
Prevalence at birth1-5 / 10 00022.4 / 100 000SwitzerlandValue and classValidatedEUROCAT European surveillance of congenital anomalies 1989-2010[OTHER]
Prevalence at birth1-5 / 10 00010.1 / 100 000United KingdomValue and classValidatedEUROCAT European surveillance of congenital anomalies 1980-2010[OTHER]
Prevalence at birth1-9 / 100 0002.3 / 100 000UkraineValue and classValidatedEUROCAT European surveillance of congenital anomalies 2005-2010[OTHER]
Prevalence at birth6-9 / 10 00070 / 100 000JapanValue and classNot yet validatedISBN:444897208[OTHER]
Prevalence at birth1-5 / 10 00042.5 / 100 000SingaporeValue and classValidated19551311[PMID]
Point prevalence1-5 / 10 000—EuropeClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

115 annotations · validated 2023-08-10
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0040072Abnormal forearm bone morphology
HP:0000137Abnormality of the ovary
HP:0006709Aplasia/Hypoplasia of the nipples
HP:0002967Cubitus valgus
HP:0000823Delayed puberty
HP:0002750Delayed skeletal maturation
HP:0100625Enlarged thorax
HP:0008222Female infertility
HP:0000133Gonadal dysgenesis
HP:0001510Growth delay
HP:0003492High urinary gonadotropins (primary hypogonadism)
HP:0000837Increased circulating gonadotropin level
HP:0012774Increased upper to lower segment ratio
HP:0001511Intrauterine growth retardation
HP:0000938Osteopenia
HP:0000939Osteoporosis
HP:0008897Postnatal growth retardation
HP:0008209Premature ovarian insufficiency
HP:0000470Short neck
HP:0004322Short stature
HP:0000879Short sternum
HP:0006610Wide intermamillary distance
Frequent (79-30%)
HP:0007477Abnormal dermatoglyphics
HP:0001999Abnormal facial shape
HP:0000739Anxiety
HP:0000708Atypical behavior
HP:0000475Broad neck
HP:0005689Dermatoglyphic ridges abnormal
HP:0005113Dilatation of the aortic arch
HP:0002910Elevated circulating hepatic transaminase concentration
HP:0006438Enlargement of the distal femoral epiphysis
HP:0001531Failure to thrive in infancy
HP:0002857Genu valgum
HP:0001952Glucose intolerance
HP:0000872Hashimoto thyroiditis
HP:0000365Hearing impairment
HP:0001397Hepatic steatosis
HP:0000218High palate
HP:0002705High, narrow palate
HP:0010510Hypermobility of toe joints
HP:0000822Hypertension
HP:0001800Hypoplastic toenails
HP:0000758Impaired use of nonverbal behaviors
HP:0006456Irregular proximal tibial epiphyses
HP:0002808Kyphosis
HP:0002162Low posterior hairline
HP:0000369Low-set ears
HP:0000347Micrognathia
HP:0009759Neck pterygia
HP:0001513Obesity
HP:0000786Primary amenorrhea
HP:0000403Recurrent otitis media
HP:0000278Retrognathia
HP:0000869Secondary amenorrhea
HP:0000914Shield chest
HP:0010044Short 4th metacarpal
HP:0010047Short 5th metacarpal
HP:0001328Specific learning disability
HP:0000474Thickened nuchal skin fold
HP:0000465Webbed neck
Occasional (29-5%)
HP:0001231Abnormal fingernail morphology
HP:0000377Abnormal pinna morphology
HP:0000164Abnormality of the dentition
HP:0001596Alopecia
HP:0009118Aplasia/Hypoplasia of the mandible
HP:0001631Atrial septal defect
HP:0007018Attention deficit hyperactivity disorder
HP:0000987Atypical scarring of skin
HP:0002960Autoimmunity
HP:0001647Bicuspid aortic valve
HP:0002608Celiac disease
HP:0002611Cholestatic liver disease
HP:0001680Coarctation of aorta
HP:0000476Cystic hygroma
HP:0012434Delayed social development
HP:0000716Depression
HP:0000086Ectopic kidney
HP:0000286Epicanthus
HP:0001395Hepatic fibrosis
HP:0001385Hip dysplasia
HP:0000085Horseshoe kidney
HP:0001812Hyperconvex fingernails
HP:0000842Hyperinsulinemia
HP:0003186Inverted nipples
HP:0001004Lymphedema
HP:0003067Madelung deformity
HP:0000995Melanocytic nevus
HP:0001658Myocardial infarction
HP:0000545Myopia
HP:0003764Nevus
HP:0005603Numerous congenital melanocytic nevi
HP:0000767Pectus excavatum
HP:0001763Pes planus
HP:0001657Prolonged QT interval
HP:0000508Ptosis
HP:0004349Reduced bone mineral density
HP:0002650Scoliosis
HP:0001831Short toe
HP:0011307Splayed toes
HP:0000486Strabismus
HP:0100646Thyroiditis
HP:0005978Type II diabetes mellitus
HP:0001045Vitiligo
Very rare (<4-1%)
HP:0002647Aortic dissection
HP:0005294Arterial dissection
HP:0002613Biliary cirrhosis
HP:0001394Cirrhosis
HP:0000471Gastrointestinal angiodysplasia
HP:0004386Gastrointestinal inflammation
HP:0000150Gonadoblastoma
HP:0004383Hypoplastic left heart
HP:0002037Inflammation of the large intestine
HP:0002861Melanoma
HP:0012758Neurodevelopmental delay
HP:0008678Renal hypoplasia/aplasia

Run the differential on the 12 obligate / very frequent terms

Annotation source: 30560013[PMID]_28705803[PMID]_17047017[PMID]_22707402[PMID]_25517026[PMID]_25438673[PMID]_27008889[PMID]_25573747[PMID]_26039527[PMID]_26874361[PMID]_26744895[PMID]_20594638[PMID]_22802424[PMID]_23603786[PMID]_24731013[PMID]_14752843[PMID]_23173989[PMID]_18839441[PMID]_17873120[PMID]

7

Sources for this card