Determining whether a mole is suspicious and requires further medical investigation is a crucial aspect of self-mole checks. In the case of online mole checks, this important distinction must be made by the layperson – you or whoever is helping you with your mole check.
During an in-person dermatologist-led mole check, every lesion can be quickly examined using a hand-held dermatoscope, and decisions can be made on the spot based on the dermatoscopic image.
For self-mole checks, making this decision is more challenging, as an inexperienced layperson must base their judgment on the macroscopic appearance of the mole. Even though benign skin lesions can mimic malignant tumours, sometimes the most innocent-looking lesion is an early-stage malignant tumour.
As you submit your images, we guide you through this process with explanatory videos and case studies to help you make informed decisions. Here are some basic guidelines:
– Look for the outlier, odd, or ugly duckling lesion: When examining your moles, identify any that differ significantly from the rest (e.g., larger, darker, more asymmetrical) based on the ABCDE rule detailed below. Such moles may need medical attention.
– Look for change: If you notice any skin lesion (dark or reddish/pink/shiny) that is relatively new and hasn’t disappeared spontaneously after a month, it may require medical attention.
– Non-healing skin lesions: If you have a lesion covered by a crust that never heals completely or occasionally bleeds or oozes, it may need medical attention.
Suspicious moles may exhibit changes in size, shape, colour, or texture, or may cause symptoms such as itching, bleeding, or crusting. The ABCDE rule is a helpful guide to identify potentially suspicious moles:
Asymmetry: The two halves of the mole do not match.
Border: The edges are irregular, scalloped, or poorly defined.
Colour: The mole has various shades of brown, black, or other colors.
Diameter: The mole is larger than 5mm (about the size of a pencil eraser).
Evolving: The mole changes in size, shape, or colour over time.
If you notice any of these characteristics in a mole, it is essential to seek further evaluation by a dermatologist.