Key Findings from This Survey: Conclusion: Moles that suddenly grow larger are not necessarily dangerous, but a visit to a dermatologist is recommended. You can self-check for differences between moles and melanoma using the "ABCDE criteria" (Asymmetry, Border, Color, Diameter, Evolution). If you notice changes in a mole, please consult a dermatologist first. - 68.3% of respondents have experienced changes in their moles during the summer. - A majority of 76.3% felt anxious about the changes but did not seek medical attention. - Awareness of the "ABCDE criteria" for self-checking melanoma is only 15.7%. Glossary: ■ What is Melanoma (Malignant Melanoma)? Melanoma is a malignant tumor originating from melanocytes (pigment cells). It is highly aggressive among skin cancers, making early detection and treatment extremely important. Approximately 2,500 new cases are diagnosed annually in Japan, and it tends to occur on the soles of the feet and under the nails. ■ What are the ABCDE Criteria? The ABCDE criteria are an international self-checking method for distinguishing between moles and melanoma. It consists of five items: Asymmetry, Border, Color, Diameter, and Evolution. ■ What is a Dermoscopy Examination? A dermoscopy examination is a non-invasive diagnostic method that uses a special magnifying lens (dermatoscope) to observe skin lesions. It allows for the observation of fine structures of the skin invisible to the naked eye and is useful in differentiating moles from skin cancer. Comparison of Benign Moles and Suspected Melanoma Characteristics (ABCDE Criteria) Check Item Benign Mole Suspected Melanoma A: Asymmetry Symmetrical Asymmetrical B: Border Clear border Irregular or notched border C: Color Uniform color Uneven color or multiple colors D: Diameter Less than 6mm 6mm or more E: Evolution No change over a long period Changes in size, color, or shape *These are general guidelines and individual differences may apply. IC Clinic (Shinjuku, Shibuya, Ueno, Ikebukur