The most common symptoms of melanoma are:
- a new spot on the skin, or a spot that is changing in size, shape or colour
- moles that have features of the ‘ABCDE rule’:
- Asymmetry: the 2 sides of the mole do not match
- Border irregularity: the mole has irregular edges
- Colour: the mole is not the same colour throughout
- Diameter: the mole is wider than about 6 mm (although some melanomas are smaller than this)
- Evolving: the mole has changed in size, shape, colour or texture during the past few weeks or months
- a sore that does not heal
- itching, scaling, bleeding, oozing, swelling or pain, in or around a mole
- spread of pigment from a spot into the surrounding skin.
Many conditions can cause these symptoms, not just melanoma. If you have any of these symptoms, talk to your doctor.
- American Cancer Society (US) (2019). Melanoma skin cancer https://www.cancer.org/cancer/melanoma-skin-cancer.html.
- National Comprehensive Cancer Network (US) . NCCN guidelines for patients: melanoma. https://www.nccn.org/patientresources/patient-resources/guidelines-for-patients/guidelines-for-patients-details?patientGuidelineId=21.
- National Cancer Institute (US). Melanoma treatment (PDQ®) https://www.cancer.gov/types/skin/patient/melanoma-treatment-pdq, patient version.