Cervical pregnancy

Specialty
Obstetrics · Early pregnancy
Images
Ultrasound 2
Last updated
10/2026 · Dr. Pascal Bafteh
Contents
  1. Images (2)
  2. Definition
  3. Occurrence & epidemiology
  4. Clinical features
  5. Diagnosis
  6. Keep learning in the app
  7. Further reading (selection)
  8. Cross-references

Images (2)

Cervical pregnancy – UltrasoundUltrasound
Image: Jesper Agrell, MD. Uploaded by Mikael Häggström (Wikimedia Commons) · CC BY-SA 3.0 · Source · cropped
Cervical pregnancy – UltrasoundUltrasound
Image: Jesper Agrell, MD. Uploaded by Mikael Häggström (Wikimedia Commons) · CC BY-SA 4.0 · Source
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Definition

  • Cervical pregnancy is the implantation of the gestational sac in the endocervical canal below the internal os and a rare form of non-tubal ectopic pregnancy.

Occurrence & epidemiology

Epidemiology

  • It accounts for less than 1% of all ectopic pregnancies; its incidence is reported as 1 in 1,000 to 1 in 18,000 pregnancies.

Clinical features

Clinical features and complications

  • The main danger is massive vaginal haemorrhage.
  • Presentation ranges from asymptomatic findings to acute courses and may be early or delayed.

Diagnosis

  • Ultrasound criteria are a gestational sac below the internal os with blood flow on Doppler and an absent sliding sign.

Keep learning in the app

In the GynFuchs app you can learn Cervical pregnancy with flashcards, exam questions and image tasks (colposcopy, ultrasound, CTG) – free, in your browser or as an app.

Open in browser  About GynFuchs →

Further reading (selection)

  1. StatPearls: Ectopic Pregnancy (NCBI Bookshelf)
  2. Acta Med Litu 2024: A Systematic Review about Cervical Pregnancy and our Experience (PMC, open access)

Cross-references

More topics: Early pregnancy

Note: Learning content from the GynFuchs app (flashcards, exam questions, image cases) for medical education – not a treatment recommendation and no substitute for diagnosis or treatment decisions in individual cases. Treatment and management are deliberately not covered on this page.