Key clinical features and symptoms that may suggest a diagnosis of molar pregnancy, a form of gestational trophoblastic disease, often overlap with those of a miscarriage NICE NG126,NICE CKS.
Common presentations include vaginal bleeding NICE NG126Chawla et al. 2023. Patients may also experience excessive nausea and vomiting, referred to as hyperemesis gravidarum 2025Chawla et al. 2023.
On examination, the uterus may be larger than expected for the gestational age 2025Chawla et al. 2023. Laboratory tests typically reveal abnormally high levels of human chorionic gonadotropin (hCG) 2025Chawla et al. 2023.
Other less common but significant indicators can include the absence of fetal heart sounds [ (Heřman et al., 2025)], the early onset of pre-eclampsia 2025Chawla et al. 2023, or the passage of 'grape-like' vesicles 2025Chawla et al. 2023. Definitive diagnosis relies on histopathological examination Sebire 20102025.
Key References
- NG126 - Ectopic pregnancy and miscarriage: diagnosis and initial management
- CKS - Ectopic pregnancy
- CKS - Miscarriage
- CKS - Infertility
- (Sebire, 2010): Histopathological diagnosis of hydatidiform mole: contemporary features and clinical implications.
- (Heřman et al., 2025): Histopathological and clinical features of molar pregnancy.
- (Chawla et al., 2023): Gestational trophoblastic disease: an update.