Result: Men accounted for 17.7% and women accounted for 82.3%; the mean age was 27.3 ± 6.1 years old; mean age of onset was 17.2 ± 5.0; the clinical form of papule - pustule acne accounted for the highest rate of 71.4%; mild acne accounted for 41.2%, moderate degree accounted for 42.8% and severe degree accounted for 16%; family history, menstrual cycle, diet, and weather were major factors associated with acne vulgaris.