The condition is rare, although the exact incidence is unknown. The disorder most often occurs as a complication of the surgical removal of a parotid gland (parotidectomy). The percentage of individuals who develop<unk>  syndrome after a parotidectomy is controversial and reported estimates range from 30–50 percent. In follow-up examinations, approximately 15 percent of affected individuals rated their symptoms as severe.<unk>  syndrome affects males and females in equal numbers.
Frey's syndrome
Renpenning's syndrome
Susac's syndrome
Wartenberg's syndrome
Villaret's syndrome
Banti's syndrome
Wilkinson's syndrome
Adams–Nance syndrome