The aim of this study was to determine the impact of phenol injection on the outpatient
treatment of the sacrococcygeal pilonidal sinus disease. A prospective analysis was taken of
forty patients between June 2002 to June 2006 as an outpatient. Age, sex, state of sinuses at
initial presentation & the recovery time was analyzed. Phenol injection applied on 40 patients,
37 males & 3 females. Forty percent of the patients required one injection while 55 % of the
patients had two applications. The recovery time was between 1-3 months. Recurrence was
observed in 15% (6 patients). Phenol treatment is simple, easy & inexpensive method that can
applied on an outpatient basis, decreasing both recurrence rate & the morbidity.