This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Cleft lip and palate

Authoring team

Cleft lip and cleft palate is relatively common, occurring roughly once in 600 live births. The majority of these abnormalities are isolated occurrences, however there may be a positive family history. Some cases have been linked to maternal corticosteroid therapy.

The distribution of occurrences of different types of cleft lip and/or cleft palate is approximately:

  • cleft lip - a third
  • cleft palate - a quarter
  • cleft lip and palate - nearly half

The majority of cleft lip and/or palate cases are unilateral (80%), and are more common on the left side. Midline clefts of the nose and/or lip are rare deformities.

Reference

  1. Tanaka SA et al. Updating the epidemiology of cleft lip with or without cleft palate. Plast Reconstr Surg. 2012 Mar;129(3):511e-8e.

Related pages

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show 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 2026 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.