raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:64739

Ovarian hyperstimulation syndrome

Synonyms: OHSS

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adolescent, Adult
Status
active

A rare non-malformative gynecological disease affecting pre-menopausal women usually following treatment with ovarian stimulating hormones, characterized by ovarian enlargement and, to varying degrees, shift of serum from the intravascular space to the third space, mainly into the peritoneal, pleural, and to a lesser extent to the pericardial cavities. Presenting symptoms include abdomen distention, pain, nausea, and vomiting. Severity ranges from mild to life-threatening and is complicated by increased risk of thrombosis, acute hepato-renal failure, acute respiratory distress syndrome, and ovarian torsion and rupture.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enOvarian hyperstimulation syndromeOHSS
frSyndrome d'hyperstimulation ovarienne
deOvarielles Überstimulationssyndrom= en
esSíndrome de hiperestimulación ováricaSHO
itSindrome da iperstimolazione ovarica= en
nlOvarieel hyperstimulatiesyndroomOHSS · Ovariumhyperstimulatiesyndroom
ptSíndrome hiperestimulação ováricaSHO
plZespół hiperstymulacji jajników= en
csOvariální hyperstimulační syndrom= en
ukСиндром гіперстимуляції яєчників= en
zh卵巢过度刺激综合征= en
trYumurtalık hiperstimülasyon sendromu= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM608115Evalidated
ICD-10N98.1Especificvalidated
ICD-11GA32.0Especificvalidated
MONDO0011972Evalidated
MeSHD016471Evalidated
UMLSC0085083Evalidated
MedDRA10033266Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
FSHRMajor susceptibility factor inAssessedHGNC:3969ENSG000001708201364352p16.3follicle stimulating hormone receptor19573286[PMID]_18248882[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET

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

17 annotations · validated 2016-01-20
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003270Abdominal distention
HP:0002027Abdominal pain
HP:0001541Ascites
HP:0030005Capillary leak
HP:0008675Enlarged polycystic ovaries
HP:0001007Hirsutism
HP:0000837Increased circulating gonadotropin level
HP:0030088Increased serum testosterone level
HP:0002018Nausea
HP:0002017Nausea and vomiting
Frequent (79-30%)
HP:0012886Hemorrhagic ovarian cyst
HP:0000138Ovarian cyst
HP:0002202Pleural effusion
Occasional (29-5%)
HP:0007430Generalized edema
HP:0011106Hypovolemia
HP:0012398Peripheral edema
HP:0100598Pulmonary edema

Run the differential on the 10 obligate / very frequent terms

Annotation source: 12930928[PMID]_16679690[PMID]_17721928[PMID]_12930927[PMID]_12930924[PMID]_12498425[PMID]

7

Sources for this card