There was a significant difference between two DLQI categories (≤10 and >10) regarding to sex, age, duration of having acne, education level, occupation and complications of acne The DLQI was weakly correlated with GAGS scores in patients with various severity (R= 0.209, p < 0.001) with regression equation: total score of life quality = 8.671 + 0.19 x (score of severity of acne).