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Objective The aim of the present study was to provide more information on the role of illness perception in patients with androgenetic alopecia (AGA) and those with alopecia areata (AA), and to further investigate the relationship of illness perception with psychological disorders and dermatological QoL. Methods The study included 342 patients who were diagnosed with AGA (n = 212) or AA (n = 130) for the first time at our institution between October 2013 and December 2014. All patients were surveyed before clinical examination by several questionnaires including the Brief Illness Perception, Self-rating Depression Scale, Self-rating Anxiety Scale, and Dermatology Life Quality Index (DLQI). Results In the AGA patients, the illness perception and QoL were low, whereas the prevalence of clinical depression and anxiety was higher compared to the AA patients. Illness perception was associated with psychological distress and low QoL in both groups, and some illness perception dimensions were found to be significant predictors of the DLQI scores. Conclusion Illness perception plays an important role in AGA and AA patients, and is associated with psychological distress and low QoL. The identification of critical components of illness perception in alopecia patients could help to understand alopecia specificities, to design consultations and interventions according to the perception, and to improve physical and mental outcomes as well as QoL in alopecia patients.

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No study has tested the reliability and validity of the revised Symptom Checklist 90 (SCL-90-R) for patients with alopecia areata (AA), and few have used it to evaluate the mental health of AA patients. To assess the psychological status in Chinese AA patients using the SCL-90-R, and to evaluate its reliability and validity, the psychological status of 168 patients and 100 controls was evaluated with the Chinese-version SCL-90-R. From this study, we found that The Global Severity Index and nine subscale scores on the SCL-90-R were significantly higher in AA patients than that in the controls. Moreover, The Global Severity Index and nine subscale scores on the SCL-90-R were associated with disease duration, age of onset, sex and type of AA. In addition, the SCL-90-R presented good internal consistency (whole scale α = 0.98 and split-half coefficient = 0.95). The intercorrelations between the nine subscales and their correlations with the total scale were 0.58-0.93. Factor analysis produced 22 factors with eigenvalues more than 1.0; the first factor explained 33.88% of the variance. Only hostility and paranoid ideation merged into one factor. Taken together, our data indicated that Chinese AA patients demonstrate greater psychopathology than healthy controls. The SCL-90-R can be used to assess global psychological distress in AA patients with good reliability and validity.