Extramammary Paget's disease (EMPD) is a rare skin cancer occurring in areas with abundant apocrine glands. Dermoscopy has been used to monitor treatment outcomes and post-treatment follow-up in skin cancers such as Bowen's disease, basal cell carcinoma, and squamous cell carcinoma. Sampling bias from incisional biopsies could be prevented, as the entire skin lesion could be examined. Therefore, dermoscopy is a useful tool to assess and detect highly recurrent tumors such as EMPD, thus improving the clinical prognosis of the patient.