Neonatology · Congenital conditions · Practical overview
An opening between the mouth and nose needs an early plan. Appearance alone cannot determine the youngster’s future or the best operation.
Key points. A cleft palate is a defect in the separation between the oral and nasal cavities. It may impair suckling, allow milk or food into the nose and increase the risk of aspiration pneumonia. Diagnosis requires examination of the entire palate, including its caudal portion, followed by respiratory and nutritional assessment and a search for associated abnormalities. The immediate priority is stabilisation and a safe feeding plan; a particular teat does not guarantee safety. Repair can provide good functional outcomes, although further procedures may be needed. Management without closure is also possible in selected dogs under supervision. Published evidence is predominantly canine and cannot automatically be applied to kittens.
For breeders and owners. Tube selection and feeding training require veterinary guidance. This overview contains no drug doses or instructions for performing surgery.
1. Lip, hard palate and soft palate defects are different conditions
The hard palate forms the bony, rostral roof of the mouth. The soft palate extends this separation caudally and contributes to swallowing. A cleft may affect either part or both, be short or long, narrow or wide, symmetrical or accompanied by abnormalities of the lips, nose, jaws or teeth.
Cleft lip and lip/alveolar clefts involve the upper lip and the region where some teeth develop. They do not by themselves establish an opening throughout the secondary palate. Conversely, a normal lip does not exclude a significant caudal defect.
| Location | Possible effects | What needs checking |
|---|---|---|
| Lip / alveolar region | Altered suckling, nasal or dental anatomy; variable functional impact. | Associated secondary palate cleft; dental and nasal anatomy. |
| Hard palate | Oronasal communication, food passage and nasal inflammation. | Length, width, tissue quality and available bone. |
| Soft palate | Impaired swallowing, nasal regurgitation and aspiration. | Examination of the caudal mouth and swallowing function. |
| Extensive / combined defects | Feeding and respiratory problems; possible other abnormalities. | Whole-patient assessment and early oral/paediatric surgical advice. |
The defect develops when palatal structures fail to develop or fuse normally during gestation. A cleft palate is not, by definition, failure of neural tube closure. Developmental timing depends on the process considered and how gestation is dated; one short window does not describe the entire formation of the palate.
2. Clinical signs matter as much as visible width
The first clue may be ineffective suckling, sneezing during or after a feed, milk from the nose, coughing, agitation after meals or a youngster that falls behind its littermates. Growth may slow before obvious respiratory distress occurs. A very caudal cleft can be difficult to see at home.
Milk in the nose does not by itself prove pneumonia, but it shows that feeding needs reassessment. Aspiration pneumonia may cause rapid breathing, increased respiratory effort, dullness and abnormal auscultation. The absence of coughing or fever does not reliably exclude it in a neonate.
| Observation | Concern | Response |
|---|---|---|
| Defect identified; youngster active and gaining weight | Aspiration risk and future management. | Early assessment; do not improvise feeding. |
| Milk from the nose, cough or repeated sneezing at meals | Nasopharyngeal passage; possible aspiration. | Stop the unsafe episode and promptly obtain a safer plan. |
| Weight stagnation, fatigue or chilling | Insufficient intake, hypoglycaemia/dehydration or associated illness. | Prompt care, urgently if poorly responsive. |
| Dyspnoea, cyanosis or collapse | Respiratory or systemic decompensation. | Immediate emergency care; stabilise before prolonged testing. |
Avoid premature conclusions. Coughing can also result from a swallowing disorder, oesophageal disease, feeding error or infection. Finding or excluding a cleft does not replace a general examination.
3. Targeted assessment before discussing surgery
The veterinarian documents the entire mouth, particularly the hard–soft palate junction and the soft palate. Assessment includes the lips, dental arch, jaws, available tissues and any previous repair. An incompletely visualised palate in a struggling patient cannot be declared normal. Suitable handling, lighting and sometimes examination under anaesthesia are considered according to stability.
General assessment includes breathing at rest, auscultation, perfusion, temperature, hydration, weight and the growth trajectory. It also considers associated malformations, the dam, littermates and the feeding arrangement. A clear photograph can support the record, but owners should not force the mouth open or place an instrument near the defect.
| Clinical question | Possible targeted test | Limitations |
|---|---|---|
| Is there pneumonia or another respiratory complication? | Respiratory examination, thoracic radiographs, oxygenation assessment; selected sampling when indicated. | Nasal discharge or a nasal culture alone does not establish lung infection; stabilisation comes first. |
| Is intake adequate and tolerated? | Growth chart, nutritional assessment, blood glucose or other tests guided by signs. | A single measurement does not replace the clinical trajectory. |
| Can the defect be reconstructed, and how? | Detailed oral examination; dental imaging or CT for complex anatomy. | CT is not mandatory for every simple cleft; balance its benefit against anaesthetic requirements. |
| Does an associated malformation alter the prognosis? | Complete examination; imaging or specialist assessment guided by findings. | Avoid an indiscriminate panel that changes no decision. |
4. Providing nutrition while protecting the lungs
The plan depends on cleft location, swallowing function and respiratory episodes. A cleft should not prompt repeated trials of different teats, flow rates or positions until something appears to work. Milk that does not visibly leave the nostrils may still be aspirated. A specialised teat or obturator is not a universal safeguard.
Enteral tube feeding may bypass the oral cavity and support growth. Tube type and size, position verification, intake, frequency and monitoring are prescribed and taught by the veterinarian. Incorrect placement, unsuitable amounts or reflux remain dangerous in a newborn; tube feeding does not eliminate every aspiration risk.
The carer needs to recognise when a feed must stop and have a contact for difficulties. Practical demonstration, confirmation of the carer’s technique and follow-up are needed. An online diagram or video is insufficient. A cold, dull or respiratory-compromised youngster needs reassessment before forced feeding.
| Situation | Aim | Precaution |
|---|---|---|
| Neonate with oronasal communication | Adequate intake via a route limiting aspiration. | Veterinary prescription and practical training; no forced syringe feeding. |
| Growth before repair | Adjust support to tolerance and development. | Reassess after weight changes, reflux, cough or handling difficulties. |
| Transition to another texture | Maintain nutrition and comfort when age allows. | Supervised trial; a texture suitable for one dog may not suit another. |
| Custom obturator or other device | Specialist option in selected patients. | Fit, growth, hygiene and tolerance need review; no homemade plug. |
Passive transfer of colostral immunity also deserves attention when suckling is inadequate. The veterinarian considers age and actual intake rather than automatically applying a plasma regimen described in a small case series. The dam and the rest of the litter continue to need monitoring.
5. A simple record improves follow-up
Record weight under comparable conditions, prescribed intake and feeding route, behaviour, resting breathing, coughing/nasal discharge/reflux and any difficulties with care. Short videos of resting breathing or concerning episodes can help the team; they cannot replace examination during respiratory distress.
Good weight gain is encouraging but does not exclude respiratory disease. Poor gain may reflect inadequate intake, intolerance, infection, another malformation or several factors. Reassess the plan instead of blindly increasing feed amounts.
Prepare for the appointment. Bring the growth chart, current feeding instructions, reports, previous treatments and useful videos. Mention similar cases in the litter or previous litters.
6. Repair or conservative care: choose for the individual
The decision considers growth without repeated aspiration, breathing, comfort, associated abnormalities, reconstructible anatomy, available expertise and the care that the family can realistically provide. Costs and possible revision should be discussed early, with an estimate of the useful stages.
A retrospective study of 65 dogs managed without closure reported frequently favourable quality of life. Assessment concerned dogs that had survived the transition to solid food, so it cannot establish survival for all affected neonates. There was no randomised comparison with surgery. Conservative care may suit some dogs; it does not justify unrestricted suckling in a newborn at risk. [1]
Conservative care still requires supervision of the individual diet, growth, rhinitis, food trapping, discomfort and respiratory infections. Persistent signs or inadequate comfort may change the decision. Feline evidence is substantially more limited.
An extensive cleft does not automatically require euthanasia. If care cannot preserve nutrition, breathing and welfare, or associated defects severely limit the options, an individual end-of-life decision may be appropriate. Neither a photograph nor width alone replaces that assessment.
7. Planning repair and its timing
Before anaesthesia, assess respiratory stability, growth, nutrition, temperature and concurrent disease. Pneumonia or decompensation changes the timetable. The young patient’s risks — chilling, hypoglycaemia and limited physiological reserves — require an appropriately equipped team and monitoring.
Dr Lévy’s paediatric surgical teaching describes delayed repair to improve access and tissue strength. This is not one compulsory age for every defect. Waiting may facilitate some procedures, but poor growth or repeated aspiration also make delay harmful. Postponement until adulthood is not a general rule.
The surgeon chooses local flaps, possible staged reconstruction and dental measures according to the anatomy. The principles are preservation of blood supply, closure without excessive tension and management of vulnerable areas. A membrane or newer technique does not replace these principles and has not been validated as a universal solution.
A series published in 2025 describes staged reconstruction in four dogs with wide defects. A prospective 2026 study in ten dogs primarily concerns lip/alveolar clefts; four also had secondary palate clefts. These reports expand the options, but small samples cannot guarantee a method or establish equivalent results in cats. [3] [4]
Antibiotics need an indication. Suspected or documented pneumonia, infection or operative circumstances may justify treatment. A cleft, isolated nasal discharge or the waiting period before repair does not automatically justify prolonged antibiotics.
8. After repair: protect healing and monitor function
Return to oral feeding, food texture, activity and protection from chewing follow the surgeon’s instructions. A feeding tube may be retained according to the repair and healing; no fixed duration fits every patient. Avoid hard toys, bones, tissue traction and forcing the mouth open to inspect sutures.
Inadequate pain control, reduced intake, cough, difficult breathing, food-related nasal discharge, substantial bleeding, foul odour or dullness require contact with the team. A recurrent communication may be small but functionally important; its location and circumstances determine monitoring or revision.
| Monitored issue | What the team assesses | Implication |
|---|---|---|
| Fistula / dehiscence | Residual opening, location, tension and inflammation. | Oral reassessment and possible secondary repair. |
| Breathing / swallowing | Persistent aspiration, infection, obstruction or another abnormality. | Targeted reassessment; emergency care for distress. |
| Weight, comfort and intake | Pain, insufficient nutrition or difficulties providing care. | Adjust support and recovery instructions. |
| Jaw growth / teeth | Occlusion, displaced teeth and sequelae of the defect. | Longer-term oral follow-up. |
Success includes comfort, nutrition and breathing, rather than the appearance immediately after suturing. Revision may be necessary without implying failure of the entire management plan.
9. Published outcomes and their limits
| Study | Useful finding | Limitation |
|---|---|---|
| Peralta et al., 2018; 26 dogs | Functional success in 22 dogs; fistula after initial repair in 13. | Retrospective series; final function differs from closure after one procedure. [2] |
| Monck et al., 2024/2025; 65 dogs | Management without closure can suit selected patients. | Survivors to solid feeding, owner questionnaires; no direct treatment comparison. [1] |
| Xavier G.M. et al., 2025; 10 puppies | Early support then nine repairs, including three revisions; one spontaneous closure. | Small non-comparative series; spontaneous closure is exceptional, not a waiting strategy. [5] |
| Haggerty et al., 2025; 4 dogs | Staged reconstruction for wide defects. | Specialist technique; very small sample. [3] |
| Maitre et al., 2026; 10 dogs | Encouraging functional outcomes for lip/alveolar defects. | Mid-term follow-up; different anatomy from an isolated secondary palate cleft. [4] |
The evidence supports individual assessment, not a personal guarantee of success or a universal price. Canine series do not demonstrate identical performance in cats. Initial health, anatomy, concurrent disease, surgical expertise and follow-up remain central.
10. Genetics, breeding and folates: prevention without guarantees
Causes can be genetic, environmental or multifactorial. Recording the parents, mating, affected relatives, associated abnormalities and exposures during gestation supports breeding advice. A single case proves neither maternal deficiency nor simple Mendelian inheritance throughout a breed.
DLX6 and ADAMTS20 variants explain particular forms in Nova Scotia Duck Tolling Retrievers. Negative results do not rule out every cause of clefting in that dog, still less in another breed. The test must match the disorder and population in which it was studied. [7]
An affected animal should be excluded from breeding. Advice for parents and relatives depends on recurrence and the family history; repeating the same mating without assessment is inappropriate. Surgical repair corrects the defect, not any underlying inherited risk.
Folic acid should not be advertised as certain prevention of all clefts. Earlier observations suggested benefit in particular populations, while a 2021 study of 1,917 guide-dog puppies found no reduction. This does not exclude benefit in a different high-risk population, but it prevents a universal promise. A balanced diet and veterinary review of medication, supplements and exposures remain necessary. [6]
Avoid uncoordinated supplements, vitamin excess, substituting a supplement for breeding assessment, or assigning one cause without evidence. Any specific regimen belongs in a consultation or a validated professional resource.
11. Common questions
Does milk from the nose always mean a cleft?
No. A cleft is an important possibility, but feeding errors, reflux and swallowing disorders also need consideration. The palate and respiratory status should be examined.
Can a puppy keep suckling if it looks well?
Apparent comfort does not guarantee absence of aspiration. Your veterinarian should assess safety and prescribe an alternative when needed.
Does a wide cleft make care pointless?
No. Some defects can be reconstructed and selected dogs can be managed without closure. Function, associated disease and practical care requirements also shape prognosis.
Must repair wait until exactly three or four months?
There is no single compulsory age. Size, tissues, respiratory status, growth and the planned technique determine the timing with the team.
Will one operation always be enough?
No. A residual fistula or staged repair may require another procedure. Discuss that possibility and its costs before initial repair.
Does vitamin B9 guarantee an unaffected litter?
No. Findings vary between study populations. Prevention combines appropriate nutrition, exposure review and breeding advice.
Are the recommendations identical for kittens?
Respiratory and nutritional priorities are similar, but published surgical and conservative outcomes are predominantly canine. A kitten needs species- and anatomy-specific assessment.
A clear plan from the start
Clarify the options early
Dr Xavier Lévy can assess feeding, neonatal health and the useful next steps at CRECS near Toulouse or Bordeaux Sud. Remote assistance in French or English is coordinated with your treating veterinarian. Emergencies require local clinical care.
12. Sources and critical reading
This overview primarily draws on Dr Xavier Lévy’s personal teaching and manuscripts, including the March 2026 EVSSAR surgical material and the paediatric presentation updated in October 2025. New findings are distinguished from practical recommendations. External publications remain the work of their respective authors.
- Monck S.L. et al. Nonsurgical care in 65 dogs. JAVMA, online 2024, 2025 issue. PMID 39362279; DOI 10.2460/javma.24.07.0470. Abstract consulted; full article unavailable during this review.
- Peralta S. et al. Outcomes of congenital palatal reconstruction. JAVMA, 2018. PMID 30451614; DOI 10.2460/javma.253.11.1445. Abstract consulted.
- Haggerty K., Hiscox L., Lewis J. Staged reconstruction in four dogs. Journal of Veterinary Dentistry, 2025, online 2024. PMID 38772625; DOI 10.1177/08987564241255049. Abstract consulted.
- Maitre P. et al. Prospective lip/alveolar reconstruction in ten dogs. Veterinary Surgery, 30 July 2026. DOI 10.1111/vsu.70120. Publisher and ECVS abstracts consulted, not the complete operative paper.
- Xavier G.M. et al. Clinical care in ten brachycephalic puppies. Veterinary Sciences, 2025, 12:474. DOI 10.3390/vetsci12050474. Clinical and discussion sections consulted in the UNESP repository PDF.
- Gonzales K.L. et al. Maternal folate supplementation in a guide-dog colony. JSAP, 2021. PMID 33496345; DOI 10.1111/jsap.13292. Abstract consulted.
- Wolf Z.T. et al. Genetic evidence involving ADAMTS20 and orofacial clefts. PLOS Genetics, 2015. DOI 10.1371/journal.pgen.1005059. Relevant genetic sections consulted.