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Cleft palate

Cleft lip is a term used to describe a notch, opening or separation in the upper lip. Cleft palate describes an opening or separation in the roof of the mouth.

Cleft lip and palate are common and affect about one baby in every 700 births. The extent of the clefts and how much they impact children varies.

Cleft lip and palate can each occur alone or together. Of the babies born with cleft lip or palate:

  • 45% have a cleft palate
  • 24% have a cleft lip
  • 31% have both a cleft lip and palate

Children who were born with a cleft lip alone are not normally at a greater risk of long-term deafness than children without a cleft lip. However, children with cleft palate or cleft lip and palate are more likely to have hearing loss.

Causes of cleft lip or palate

Cleft palate and deafness

Glue ear

Sensorineural deafness

'Understanding your child's hearing tests'

Order or download our guide ‘Understanding your child’s hearing tests’ to learn about the different types of hearing tests and hearing loss.

Ear infections and cleft palate

Children with a cleft palate may be more prone to middle ear infections. This is caused by a combination of factors that can encourage bacterial growth in the middle ear. Ear infections can occur with or without glue ear.

If you notice discharge (leaking) coming from your child’s ears, you should see your GP, who may prescribe oral antibiotics or antibiotic drops. Any prolonged discharge from the ear should be assessed by your ear, nose and throat (ENT) doctor.

Swimming and ear infections

Hearing aids and implants

Lots of children with cleft palate benefit from using hearing aids. The type of hearing aid that will be useful for your child will depend on the type and level of deafness they have and whether the outer ear is fully formed.

Hearing aids

Bone conduction hearing aids

Cochlear implants

Grommet surgery

Grommets are tiny plastic tubes, inserted into the ear drum, which help air to circulate in the middle ear to prevent fluid from building up. 

Your surgeon may recommend putting in grommets at the same time as the surgery to repair the cleft palate.

In older children, grommets may be offered if the glue ear has not cleared up after the palate repair.

Children who have a cleft palate are much more likely to have recurring glue ear after the grommets have come out. It is possible to put in grommets up to 3 times. However, repeated grommet surgeries increase the risk of complications. This is because every time a grommet is put in the eardrum is punctured, and every time one falls out it leaves a tiny scar.

'Harvey gets grommets'

In our children's comic, Harvey has glue ear and goes into hospital to have grommet surgery. You can order or download the comic to prepare your child for grommet surgery.

Syndromes associated with deafness

Most children with a cleft palate or cleft lip and palate have no other medical problems associated with it. However, cleft lip and palate occurs in more than 400 syndromes. A syndrome is a collection of signs or symptoms that commonly occur together, which doctors recognise as being related.

Syndromes may be caused by changes to genes, known as mutations, which are inherited (passed on) from one or both parents to the child. Sometimes the change in the gene happens in the child for the first time. This is known as a new or spontaneous mutation.

About 30% of children born with cleft lip or palate have a syndrome. Here is a list of the most common syndromes and where you can go for more information and support.


We are grateful to Mr Raouf Chorbachi, Consultant Audiovestibular Physician with Great Ormond Street Hospital for Children NHS Trust and North Thames Regional Specialist Cleft Lip and Palate service for his guidance in preparing this webpage. 

Last Reviewed:May 2025

Full references for this webpage are available by emailing

informationteam@ndcs.org.uk

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