Cleft lip is fixed through surgery, typically performed when a baby is around 3 to 6 months old. The procedure closes the gap in the upper lip, rebuilds the muscle underneath, and reshapes the nose to create a more symmetrical appearance. But the initial surgery is just the beginning. Fixing a cleft lip is a process that spans from infancy into the late teen years, involving presurgical preparation, one or more operations, dental work, and speech support along the way.
What Happens Before Surgery
In many cases, treatment begins within the first few weeks of life with a device called a nasoalveolar mold, or NAM. This is a small retainer-like appliance that fits inside the baby’s mouth and gently reshapes the gums, lip, and nose over time. The goal is to narrow the gap in the lip and bring the tissues closer together before surgery, giving the surgeon less distance to close and a better foundation to work with.
NAM therapy typically lasts three to four months. During that time, the device is adjusted regularly to guide the tissues into a more normal position. It also has a practical benefit for feeding: the mold gives the baby a solid surface to press a bottle nipple against, making it easier to squeeze and swallow. By the time NAM therapy is complete, the cleft is significantly narrower, the facial muscles are better aligned, and the baby is ready for the first surgery.
How the Surgery Works
The surgeon’s job is to close the gap while preserving or recreating the natural landmarks of the upper lip, especially the Cupid’s bow (the double curve along the top of the lip) and the two ridges that run from the lip up toward the nose. Getting these details right is what makes the repair look natural rather than just “closed.”
The most widely used technique is called rotation-advancement repair. The surgeon carefully marks reference points on both sides of the cleft, measuring the height difference between the cleft side and the unaffected side. Tissue on the inner (medial) side of the cleft is rotated downward to lengthen the shortened lip, while tissue from the outer (lateral) side is advanced inward to fill the gap. Small flaps of tissue are rearranged to rebuild the red portion of the lip (the vermilion) and line the inside of the repair. Underneath, the orbicularis oris muscle, which normally forms a continuous ring around the mouth, is reconnected so the lip can move and function properly.
Another well-established approach is the triangular flap technique. This method inserts a small triangle of tissue from the lateral side into the medial side to add length. It’s particularly useful for wider clefts where more tissue rearrangement is needed. Surgeons who favor this method point to its predictability: it produces a symmetrical Cupid’s bow and has low rates of revision surgery.
The choice of technique depends on the width and type of cleft, the surgeon’s training, and the specific anatomy of each child. Both approaches achieve the same goals: a lip that looks balanced, moves naturally, and holds up well over time.
What Recovery Looks Like
After surgery, the lip will be swollen and there will be stitches along the repair. Most babies stay in the hospital for one or two days. Feeding can resume fairly quickly. Your child can drink from a bottle, open cup, or soft-spouted sippy cup right after the procedure. Solid foods are given by spoon only, and you’ll need to be the one doing the feeding rather than letting your child self-feed, to protect the repair site.
Some surgeons recommend soft arm splints for about three weeks after surgery. These prevent the baby from putting fingers or objects into the mouth and accidentally pulling at the stitches. The splints go over long-sleeved shirts to keep them in place and avoid skin irritation. Not every surgeon uses them, so this is worth discussing before the operation.
Complication rates for cleft surgery are low. Roughly 3 to 4 percent of surgeries involve any complication at all, and the most common issue, infection or wound breakdown, occurs in about 1.5 percent of cases. Serious complications are rare, and mortality is less than 0.1 percent.
Speech and Language Support
A cleft lip, especially when it extends into the gum line or palate, can affect how a child learns to speak. Speech-language evaluation often begins before the child is even talking. For babies and toddlers, a speech-language pathologist listens for the variety and complexity of the sounds the child makes, how often they vocalize, and whether they use gestures to communicate. This early assessment catches delays before they become entrenched habits.
If the cleft involves the palate (the roof of the mouth), speech therapy becomes especially important after the palate is repaired, usually around 9 to 12 months. Some children develop compensatory speech patterns, learning to produce sounds in the back of the throat instead of the front of the mouth. Therapy helps redirect these patterns so that speech develops normally. Many children with cleft lip alone don’t need extensive speech therapy, but monitoring is still part of standard care.
Dental and Orthodontic Treatment
When a cleft extends through the gum line (the alveolar ridge), there’s a gap in the bone where teeth would normally grow. This is addressed with an alveolar bone graft, a procedure that transplants a small amount of bone, usually from the hip, into the gap. The graft gives permanent teeth a foundation to erupt into and stabilizes the upper jaw.
The timing of this surgery depends on tooth development. The standard window is between ages 6 and 10, ideally before the permanent canine teeth descend into the gap area. Some teams operate earlier, around age 4 to 7, to support the lateral incisors, while others wait until age 8 to 12 to focus on the canines. X-rays of the developing teeth guide the decision.
Orthodontic treatment typically runs alongside these procedures. Braces may be placed before the bone graft to align the segments of the upper jaw and create space for the new bone. After the graft heals, orthodontics continues to guide the permanent teeth into proper position. Many children with cleft lip need braces for a longer period than average, sometimes spanning several years across childhood and adolescence.
Surgeries Later in Childhood and Adolescence
The initial lip repair done in infancy produces good results, but as a child grows, the face changes shape and minor asymmetries can become more noticeable. Several additional procedures may be part of the long-term plan.
- Lip revision: Minor touch-ups to the scar or shape of the lip, often done during early childhood when the child is under anesthesia for another procedure like ear tubes.
- Tip rhinoplasty: Small adjustments to the shape of the nose tip, commonly performed between ages 5 and 15. Because the cleft pulls the nose to one side, the cartilage often needs repositioning.
- Full nasal correction: A more comprehensive reshaping of the nose, including straightening the septum, is typically done between ages 15 and 18 once the facial skeleton has finished growing. This is considered the definitive nasal surgery because the nose won’t change shape significantly after this point.
Not every child needs all of these procedures. The specific plan depends on the severity of the original cleft, how the initial repair heals, and what concerns arise as the child develops. The overall arc of treatment, from NAM therapy through final nasal surgery, can stretch 15 to 18 years. Each step builds on the last, and the results improve cumulatively. Children treated by experienced cleft teams today routinely grow into adults with minimal visible scarring and fully functional lips.