Skin cancer can appear in different ways, depending on the type. Common warning signs to look for include:
New or Unusual Growths: A firm, red nodule, a flat, scaly patch, or a sore that doesn’t heal within a few weeks.
Changes in Moles: Moles that change in size, colour, shape, or texture, or become itchy, tender, or start to bleed.
Irregular Borders: Melanomas often have uneven or poorly defined edges.
Colour Variations: Growths or moles with multiple colours, including brown, black, white, red, or blue.
Asymmetry: One half of a mole or lesion does not match the other in shape or colour.
Larger Diameter: Lesions larger than 6 millimetres (about the size of a pencil eraser) may be concerning, though melanomas can be smaller.
Evolving or Changing Lesions: Any mole or skin growth that changes over time—whether in size, shape, colour, or symptoms like itching, bleeding, or crusting—should be evaluated.
While these signs don’t always indicate skin cancer, it’s important to seek medical advice if you notice any concerning changes. Early detection and treatment significantly improve outcomes.
In addition to the three main types, there are also rare forms of skin cancer, such as Merkel cell carcinoma and dermatofibrosarcoma protuberans. While less common, these cancers can still be serious. Regular skin checks are essential—if you notice any changes or suspicious lesions, consult a healthcare professional promptly.