A total of 159 operations for the excision of a preauricular sinus car
ried out in 117 patients over an 8-year period were reviewed. Previous
excision, the use of a probe to delineate the sinus and operating und
er local anaesthesia all increased the chance of recurrence. The condi
tion recurred more often in patients who developed postoperative sepsi
s than in those who healed primarily. Means of decreasing the recurren
ce rate include: (1) meticulous dissection of the sinus by an experien
ced head and neck surgeon under general anaesthesia; (2) the use of an
extended preauricular incision; (3) clearance down to the temporalis
fascia to ensure complete removal of all epithelial components; (4) av
oidance of sinus rupture; and (5) closure of wound dead space.