What distinguishes an incomplete cleft lip from a complete cleft lip?

An incomplete cleft lip is characterized by the fact that it does not extend through the nasal cavity, which differentiates it from a complete cleft lip. In a complete cleft lip, the cleft extends through the lip and typically involves the alveolus, which connects to the nasal cavity, resulting in a more extensive separation of the structures of the lip and potentially affecting the nasal passage.

With an incomplete cleft lip, the split may be present but is limited to the lip itself and does not reach the nasal areas. This distinction is crucial for both diagnosis and treatment, as interventions may vary significantly based on the severity and extent of the cleft. Understanding these nuances regarding the differences between incomplete and complete cleft lips aids in identifying appropriate surgical and therapeutic interventions for individuals affected by these conditions.