Background: In the diagnosis of skin diseases, topographic approach is very meaningful. Though a variety of infectious, inflammatory and neoplastic dermatoses can occur in glans and prepuce, establishing the diagnosis may be difficult because their symptoms and clinical appearance can be nonspecific. Furthermore, there has been only limited data for Korean dematoses of glans penis and prepuce. Objectives: The aim of this study was to make a baseline data for Korean dematoses of glans penis and prepuce. Methods: We retrospectively reviewed the medical records, clinical photos and histologic slides of 67 patients with dermatoses of glans and prepuce, who had visited Pusan National University Hospital from January 2004 to August 2013. Results: All patients were circumcised, except one who was infected with chancroid. Skin lesions were confined to only glans in 32 patients (47.8%). There were various kinds of skin diseases (26 diseases). Most frequently diagnosed dermatoses of glans penis and prepuce were seborrheic dermatitis (19.4%), lichen planus (17.9%), herpes progenitalis (5.9%), syphilis (5.9%), condyloma accuminatum (5.9%), erythroplasia of Queyrat (4.5%), Zoon`s balanitis (4.5%), and psoriasis (4.5%). Conclusion: The result of this study could be used as baseline data for Korean dematoses of glans penis and prepuce, and could be useful for topographic approach in Korean dematoses of glans penis and prepuce.