Factors Associated With the Acne Severity Among Transmen Population: a Cross-sectional Study

The goal of this observational cross-sectional study is to identify factors associated with severity of acne in Thai transmen receiving masculinizing hormone therapy. The main questions it aims to answer are: * What are the factors associated with severity of acne in transmen? * Does masculinizing hormone therapy associate with the severity of acne in transmen? Participants will be asked to complete an online questionnaire and allow to take pictures of their face for acne assessment purpose.