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Cleft lip and palate

Published by Bupa’s Health Information Team, October 2011.

This factsheet is for parents of children with a cleft lip and palate, or anyone who would like information about it.

Cleft lip is a gap or split in the upper lip, and cleft palate is a gap or split in the roof of the mouth. It happens when a baby's lip and roof of the mouth don't develop properly during pregnancy.

About cleft lip and palate

Your baby's upper lip develops at around five weeks of pregnancy. His or her palate (roof of the mouth) develops from around eight to 12 weeks. Normally these tissues grow towards each other and join up in the middle.

If the tissues don't join together, a gap forms in your baby's lip and gum. This is cleft lip and can be a single gap on one side of your baby’s upper lip (unilateral cleft lip) or two gaps, one below each nostril (bilateral cleft lip). If the cleft involves your baby’s entire lip and continues up to the nostril, it’s called a complete cleft lip.

Illustration showing a cleft lip and palate

If your baby’s palate doesn’t join up and there is a gap in the roof of your baby's mouth, it’s called a cleft palate. This can happen on its own or with cleft lip. It can affect the hard palate at the front of your baby’s mouth, the soft palate at the back of the mouth, or both.

Each year in the UK, about one baby in 700 is born with a cleft lip, a cleft palate or both.

Problems related to cleft lip and palate


If your baby has a cleft lip or palate, he or she may have problems feeding. Your baby may take in too much air during feeding, feed slowly or bring up milk through their nose.

With help, if your baby has only got a cleft lip, he or she should be able to breastfeed. You may need to try different positions, press your baby's lips against your breast or close the cleft with your finger so that he or she can latch on properly and suck. Babies with a cleft palate tend to have more difficulty breastfeeding because they can’t create enough suction in their mouths.

If your baby can't breastfeed, or you don't want to breastfeed, you can use a squeezable bottle and a soft teat to help your baby feed. You can use these with expressed breast milk or formula. Babies who find it difficult to feed may gain weight slowly at first. Your nurse specialist will monitor feeding and provide advice and support.

Speech and language

If your child has a cleft lip, he or she will not usually have any speech or language difficulties. However, children with a cleft palate are usually slower to start talking and may find it hard to pronounce some sounds clearly. When this happens, your child will need speech and language therapy.

Most children who have surgery for cleft palate go on to speak normally after speech therapy, although some need more surgery to reduce the air going through their nose. This will usually happen before your child starts school.


Children with a cleft palate are more likely to develop glue ear. This is where sticky fluid builds up behind the eardrum. In children without a cleft palate, this fluid drains away from the ear into the throat through the Eustachian tube. However, the muscles that help open and close the Eustachian tube don’t work properly when your child has a cleft palate. Usually, your child will grow out of the problem. Small tubes called grommets can be inserted to drain your child’s ears if his or her hearing is affecting speech and language development, or sometimes a temporary hearing aid is recommended.

Teeth and jaws

Having a cleft lip and/or palate will affect your child’s teeth. His or her teeth may be missing, or they may come through in abnormal positions, or an extra tooth may develop. Orthodontic treatment will help your child's teeth come through straight and in the right place. The cleft lip and palate makes the teeth at risk of tooth decay and therefore it’s very important that you help your child clean his or her teeth properly.

When your child’s second teeth are coming through and during the early teens, he or she will usually need to wear a brace. Your child may also need to have some teeth removed to stop overcrowding, or have implants to replace missing teeth.

Causes of cleft lip and palate

The exact cause of cleft lip and palate is unknown, but it’s thought to be caused by a combination of genetic and environmental factors. Cleft lip and palate can sometimes have a family link. If you have had a child with a cleft lip or palate, you will be offered genetic counselling to find out your risk of having another child with a cleft lip or palate. Cleft lip alone and cleft lip and palate are more common in boys. Cleft palate alone is more common in girls.

Doctors can't reliably predict which pregnancies will be affected. If you’re pregnant, certain things may increase your risk of having a baby with cleft lip or palate. More research is needed, but they may include:

  • having an infection
  • smoking or drinking alcohol
  • not having enough folic acid
  • stress
  • fever during early pregnancy
  • being very overweight
  • taking certain medicines (talk to your GP before trying for a baby if you're taking any medicines)

Sometimes babies develop cleft lip and/or palate in combination with other defects, such as heart problems.

Diagnosis of cleft lip and palate

Your routine ultrasound scan at 18 to 20 weeks of pregnancy will usually pick up if your baby has a cleft lip. You will be put in touch with a specialist cleft team and will see someone from the team as soon as possible, usually the nurse and/or the cleft surgeon.

If your baby has a cleft palate, you won’t find out until your baby is born because it doesn’t show up on an ultrasound scan.

Treatment of cleft lip and palate

Specialist centres

Your maternity hospital will refer you to a specialist cleft team, a multidisciplinary team of specialists who will look after your child. The team includes clinical nurse specialists, surgeons, paediatricians (doctors who specialise in children’s health), speech and language therapists, ENT specialist (doctor trained in the surgical and medical treatment of conditions affecting the ears, nose, throat, head and neck), dentists, orthodontists, psychologists and geneticists. The team will put together a care plan. Your child and your family should have advice, care and support from birth until your child reaches his or her late teens.


Surgery makes a large difference to your child's development. Your baby will usually have an operation to close his or her cleft lip around the age of three months. An operation to repair a cleft palate usually happens a bit later, at around six to nine months, but almost always before 12 months. The type of surgery your baby needs will depend on how severe the cleft is. Operations are done under general anaesthesia - this means your baby will be asleep during the operation. Ask your surgeon how long your baby will need to stay in hospital. You will usually be able to stay in the hospital with your baby.

Your child will usually need more surgery later on to improve the appearance of his or her lip and nose, and sometimes the function of the palate.

Prevention of cleft lip and palate

All women should take a daily supplement of 400 micrograms of folic acid in the month before conception and in the first 12 weeks of pregnancy. This is to reduce the risk of spina bifida, but may also reduce the risk of cleft lip and palate.


For answers to frequently asked questions on this topic, see Common questions.

For sources and links to further information, see Resources.

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  • This information was published by Bupa's Health Information Team and is based on reputable sources of medical evidence. It has been reviewed by appropriate medical or clinical professionals. Photos are only for illustrative purposes and do not reflect every presentation of a condition. The content is intended only for general information and does not replace the need for personal advice from a qualified health professional. For more details on how we produce our content and its sources, visit the about our health information page.

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  • Publication date: October 2011