Objective: "Evaluating the impacts of treating ingrown nail with phenol". Subjective: 22 patients suffering from ingrown nail visiting Dermatologica,t Clinics of Hue Central Hospital and Hospital of Hue University of Medicine and Pharmacy from June 2010 to May 2011. Research Method: Cross- sectional study. Result: Clinical features: 22 patients, 05 male and 17 female, most patients are in the age range from 40 to 59 ages (16/22 cases
72.42 percent). Predilection site was the big toe: 20/22 cases (90.91 percent). 5/22 cases (22.73 percent) came within 6 months after onset. 14/22 cases (63.62 percent) had surgical intervention before. Trigger factors were improper nail cut (15 cases - 68.18 percent), excessive svyeating (4/22 cases 18.19 percent), and pregnancy (3/22 cases -13.63 percent).18/22 cases (81.81 percent) came at the first and second stage. Evaluating treatment results: pain was absolutely relieved after 1 week in 20/22 cases (90.9 percent), nail in 22 cases (100 percent) became smaller than before treatment. 1 case relapsed (4.5 percent).