Objective: The purpose of this survey is to investigate the university students' face infections with Demodex, and explore the possible factors of Demodex infections. Methods: On this survey, the following pressure method is adopted. The operator has used sterilized thumb against the client part of the facial skin, observing mites under microscopy. Results: The results of the survey for the total Demodex infection rate were 32.50%. Demodex folliculorum infection rate was 39.49%, Demodex brevis infection rate was 49.74%, and the mixed infection rate was 10.77%. Conclusions: This survey shows that college students' Demodex infection rate is serious according to the corresponding social customs.

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