Because of the special anatomical structure of cleft palate patients, pathological cleft palate speech is formed. Surgery can only repair the defects of children's palatal anatomy and make them have the organ conditions for normal pronunciation, but can't change the articulation. Therefore, it is necessary to go through formal speech function training to restore speech intelligibility and reach or approach the standard index of normal pronunciation intelligibility.

Only surgery without voice training, the patient is still in a state of unclear speech. I suggest you go to a regular hospital or a voice training center for correction. Children with cleft lip and palate underwent speech correction 1-3 months after operation, aged 3-4 years.