Cleft Lip

Cleft lip is a birth defect where a baby's upper lip does not fully form during early pregnancy, resulting in an opening or split. This condition can range from a small notch to a larger gap and is usually diagnosed before birth or immediately afterward. It is treatable with surgery and ongoing care from a team of specialists.

What is Cleft Lip?

Cleft lip is a birth defect that occurs when the tissues forming a baby's upper lip do not completely join together during early fetal development, creating a visible opening or split. This condition can vary in size and location, affecting one or both sides of the lip, and sometimes extends up towards the nose.

A cleft lip forms very early in pregnancy, typically between the fourth and ninth weeks, when the separate parts of the face are supposed to fuse. When this fusion is incomplete, a gap remains in the lip. This is a structural difference present at birth. The appearance of a cleft lip can differ greatly. Some babies may have a small notch in the colored part of the lip, while others might have a complete split that extends through the lip and into the base of the nostril. It can occur on one side (unilateral) or both sides (bilateral) of the upper lip. Cleft lip can occur by itself or alongside a cleft palate, which is an opening in the roof of the mouth. While related, they are distinct conditions. A cleft lip primarily affects the external appearance and can impact feeding, whereas a cleft palate has more significant implications for feeding and speech.

Symptoms

The primary symptom of a cleft lip is a visible split or opening in the upper lip, which is present at birth and can range from a minor indentation to a more significant gap. This physical characteristic is usually easy to identify during a baby's initial examination.

The most obvious sign of a cleft lip is the physical separation in the upper lip. This split can appear in several ways: * **A small notch:** This is a minor indentation in the upper lip. * **A partial cleft:** The split extends partway through the lip. * **A complete cleft:** The split goes all the way through the lip and may extend into the nostril. The cleft can be located on one side of the lip (unilateral cleft lip) or on both sides (bilateral cleft lip). In some cases, the cleft may also involve the gum line. While the visible split is the main symptom, a cleft lip can also lead to feeding difficulties, as the baby may struggle to create a proper seal around a nipple, especially if a cleft palate is also present.

Causes & risk factors

Cleft lip develops from a complex interplay of genetic factors and environmental influences during early pregnancy, which prevents the facial tissues from fusing correctly. While the exact cause is often unknown, certain factors can increase a baby's risk of developing this condition.

During the first trimester of pregnancy, the tissues that form the baby's face, including the lip, grow towards each other and join. A cleft lip occurs when these tissues do not meet completely. This failure to fuse is thought to be due to a combination of genetic predisposition and environmental triggers. Several factors have been identified as increasing the risk of a baby being born with a cleft lip: * **Family history:** If a parent or another child in the family has had a cleft lip, there is a higher chance that future children may also develop the condition. This suggests a genetic component. * **Exposure to certain substances during pregnancy:** Smoking tobacco or drinking alcohol during pregnancy can increase the risk. Additionally, taking certain medications, such as some anti-seizure drugs, steroids, methotrexate, or isotretinoin, during pregnancy has been linked to a higher risk. * **Maternal health conditions:** Women who have diabetes or obesity before or during pregnancy may have a slightly increased risk of having a baby with a cleft lip. It's important to note that many babies with cleft lip are born to parents with no known risk factors, and these factors do not guarantee the condition will occur.

How it's diagnosed

Cleft lip is often diagnosed during a routine prenatal ultrasound exam, sometimes as early as the 13th week of pregnancy, allowing parents and doctors to prepare. If not detected before birth, the condition is immediately visible and diagnosed during the baby's physical examination after delivery.

Prenatal diagnosis is becoming more common due to advances in ultrasound technology. During a prenatal ultrasound, the technician can often identify the presence of a cleft lip by observing the baby's facial structures. This early detection allows healthcare providers to discuss the condition with expectant parents, explain treatment options, and connect them with specialists. If a cleft lip is not identified during pregnancy, it will be immediately apparent at birth. Doctors and nurses will perform a thorough physical examination of the newborn, during which the visible split in the lip will be noted. In some cases, a cleft lip may be part of a broader genetic syndrome, so further diagnostic tests, such as genetic counseling or additional imaging, might be recommended to check for other potential health issues.

Treatment options

The primary treatment for cleft lip is surgery, known as cheiloplasty, performed by a plastic surgeon to close the opening and restore the lip's normal appearance and function. This surgery is typically done when the baby is a few months old, often between 3 and 6 months of age.

The goal of cleft lip surgery is to close the gap in the lip, reconstruct the lip and nose, and improve the child's ability to feed and speak. The timing of the surgery is carefully planned, usually when the baby is old enough to tolerate anesthesia but young enough to minimize psychological impact and facilitate development. After the initial surgery, a child with a cleft lip often requires ongoing care from a multidisciplinary team of specialists. This team may include a plastic surgeon, an ear, nose, and throat (ENT) doctor, an orthodontist, a speech therapist, an audiologist, and a social worker. This comprehensive approach addresses all aspects of the child's health and development. Additional treatments and support may include special feeding bottles or techniques to help with nutrition before surgery, speech therapy to address any speech difficulties that may arise, and dental or orthodontic care to manage tooth development and alignment. Some children may require additional surgeries later in childhood to refine the appearance of the lip or nose, or to address any related issues.

Recovery & outlook

With appropriate surgical treatment and ongoing care, most children with a cleft lip achieve excellent outcomes, leading to a normal appearance, improved feeding, and clear speech. While some children may require long-term follow-up, the overall outlook for those with cleft lip is generally very positive.

Following cleft lip surgery, babies typically recover well. The surgical site will require careful cleaning and protection during the healing process. Pain management is provided to ensure the baby's comfort. Parents receive detailed instructions on how to care for the incision and support their baby's recovery. In the long term, the outlook for children with cleft lip is very good. Most children achieve a natural-looking lip and nose, which significantly improves their self-esteem and social interactions. While some children may experience minor speech difficulties or dental alignment issues, these can usually be effectively managed with speech therapy and orthodontic treatment. Ongoing follow-up appointments with the multidisciplinary care team are crucial to monitor the child's development, address any emerging concerns, and ensure the best possible functional and aesthetic results. With dedicated care, children born with a cleft lip can lead full and healthy lives, often with minimal lasting impact from the condition.

When to see a doctor

If your baby is born with a cleft lip, medical professionals will immediately begin a care plan. You should continue to see your child's doctor regularly for follow-up appointments and contact them if you have any concerns about feeding, speech development, dental health, or any signs of infection.

Since a cleft lip is a birth defect, it is typically identified at birth or during prenatal ultrasounds, and medical care begins right away. Therefore, the advice to 'see a doctor' usually pertains to ongoing management and any new concerns that arise after the initial diagnosis and treatment. It is important to maintain regular follow-up appointments with your child's cleft care team to monitor their progress and address any potential issues. You should contact your child's doctor or specialist if you notice any of the following: * **Feeding difficulties:** If your baby is struggling to feed, not gaining weight, or showing signs of dehydration. * **Speech concerns:** If your child's speech development seems delayed or if they have difficulty making certain sounds as they grow. * **Dental issues:** If you notice problems with tooth eruption, alignment, or overall dental health. * **Signs of infection:** Redness, swelling, warmth, or discharge around the surgical site, or fever. * **General developmental concerns:** Any worries about your child's overall growth, hearing, or well-being.

Frequently asked questions

Can cleft lip be prevented?

Currently, there is no known way to completely prevent cleft lip, as it results from a combination of genetic and environmental factors. However, avoiding certain risk factors like smoking, alcohol, and some medications during pregnancy may help reduce the risk. Discuss any medications you take with your doctor if you are pregnant or planning to become pregnant.

Does cleft lip affect feeding?

Yes, a cleft lip can sometimes make feeding difficult, especially if it's a complete cleft or if a cleft palate is also present. Babies may struggle to create a strong seal around a nipple, leading to issues with suction. Special bottles and feeding techniques can often help babies feed effectively before surgery.

Will my child's speech be affected?

Speech development can be affected by a cleft lip, particularly if the cleft extends into the gum line or if there is an associated cleft palate. However, with successful surgery and early intervention from a speech therapist, most children develop clear and understandable speech. Regular speech therapy is often a key part of long-term care.

How many surgeries are typically needed for cleft lip?

For a cleft lip, often only one primary surgery (cheiloplasty) is needed to close the lip, usually performed when the baby is between 3 and 6 months old. However, some children may require additional minor surgeries later in childhood to refine the appearance of the lip or nose, or to address related issues like dental alignment.

What causes cleft lip to happen?

Cleft lip occurs when the tissues that form the upper lip do not fuse completely during the early weeks of pregnancy. This happens due to a complex interaction between a baby's genes and certain environmental factors, such as exposure to specific medications, smoking, or alcohol during pregnancy, though the exact cause is often unknown.

Is cleft lip painful for the baby?

A cleft lip itself is not typically painful for the baby. It is a structural difference, not an injury. However, the presence of a cleft can cause discomfort related to feeding difficulties or, after surgery, from the healing incision. Pain management is provided after surgery to ensure the baby's comfort.

Sources

• MedlinePlus — Cleft Lip
• Mayo Clinic — Cleft Lip
• Cochrane Library — Cleft Lip