This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Diagnosis

Authoring team

Incompetence may be ascertained from the patient's history and on vaginal examination.

Other useful investigations include:

  • hysterography - radiography of the uterus after instillation of contrast medium - shows a characteristic funnelling of the endocervical canal
  • retrograde dilatation - easy insertion of Hegar dilators
  • ultrasound scan - incompetence if: - diameter of internal os greater that 15 mm in first trimester; or greater than 20 mm in 2nd trimester; or - endocervical canal greater than 8 mm; or - length of cervix less than 1.5 cm

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page

The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

Connect

Copyright 2024 Oxbridge Solutions Limited, a subsidiary of OmniaMed Communications Limited. All rights reserved. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions receives funding from advertising but maintains editorial independence.