Differential Diagnosis for Threatened Abortion
- Single Most Likely Diagnosis
- Threatened abortion due to hormonal imbalance or uterine factors: This is the most likely diagnosis as it is a common cause of vaginal bleeding in early pregnancy, often due to hormonal changes or issues with the uterus itself, such as a weak cervix or uterine anomalies.
- Other Likely Diagnoses
- Inevitable abortion: This condition is characterized by vaginal bleeding and cervical dilation, indicating that the pregnancy is likely to be lost.
- Missed abortion: This occurs when the fetus has died but remains in the uterus, often presenting with decreased fetal movement and vaginal bleeding.
- Ectopic pregnancy: Although less common, ectopic pregnancy can present with vaginal bleeding and abdominal pain, and must be considered in the differential diagnosis.
- Do Not Miss Diagnoses
- Ectopic pregnancy: As mentioned earlier, this is a critical diagnosis to consider due to its potential for severe morbidity and mortality if not promptly recognized and treated.
- Molar pregnancy: A rare condition where abnormal tissue grows in the uterus, which can cause vaginal bleeding and other complications.
- Placenta previa: A condition where the placenta covers the cervix, which can cause severe vaginal bleeding and is a medical emergency.
- Rare Diagnoses
- Cervical polyps or other cervical lesions: These can cause vaginal bleeding and may be considered in the differential diagnosis, although they are less common causes of threatened abortion.
- Uterine rupture: Although rare, uterine rupture can occur in women with a history of uterine surgery or other uterine anomalies, and can present with vaginal bleeding and severe abdominal pain.
- Gestational trophoblastic disease: A rare condition where abnormal cells grow in the uterus, which can cause vaginal bleeding and other complications.