Melasma, a significant cosmetic problem, has been accepted by some authors as a photoaging illness in recent times. There is no published study evaluating the effects of the clinical and sociodemographic findings on illness perception and sun protection behaviors (SPBs) in patients with melasma. Sociodemographic data, personal characteristics, and clinical features of 150 patients with melasma were recorded in this cross-sectional study. They were analyzed for their SPBs in three groups as "never," "rarely/sometimes," and "often/always." Patients completed the Melasma Quality of Life (QoL) Scale and Revised-Illness Perception Questionnaire. Melasma patients with higher clinical severity and Qol scores, lower education level, concomitant chronic illness, and a history of previous melasma treatment thought more frequently that melasma had negative serious consequences. Majority of the patients blamed sun exposure as the cause of the melasma. However, SPBs were more frequent only in patients with higher socioeconomic and educational levels, a previous history of melasma treatment, and evaluating their disease as a chronic condition. Neither Qol nor clinical severity score had a significant effect on sun exposure causal attribution or SPBs. No significant effect of patients' perception of melasma was determined on the use of sunscreen or protective hat. Being aware of the factors affecting the perception of melasma and QoL of patients might be helpful in making persistent individual recommendations for the regulation of SPBs.