There is no set timeline for skin cancer growth and appearance. Skin cancer can present in a variety of ways, including as a dark or large mole with uneven edges, a pimple or sore that does not heal within 2-3 weeks, a scaly spot, or a tender to sore spot. Skin cancers can present in a variety of colors, they can be dark or light, pink or brown. Melanoma skin cancer, in particular, has a rapid growth rate, which is what makes it so dangerous. It can turn life-threatening in just six weeks and poses a high risk of spreading to other parts of the body if left untreated. The five-year survival rate for people with melanoma is about 99% if the cancer is detected early. But it drops to about 15% if cancer has spread to other parts of the body. Basal and squamous skin cancer cells can also spread or metastasize to other parts of the body but this process usually takes a long time. By contrast, nodular melanomas can quickly grow and are more likely to invade other tissues than basal or squamous skin cancer. Different types of skin cancer grow at different rates and that the growth rate can also vary depending on the location of the cancer. Basal cell carcinomas typically grow slowly, but they can be invasive and destructive over time. The location also matters. 2mm of growth on the nose or eyelid would have a greater impact. Early detection is key when it comes to skin cancer. Dr. Rokhsar recommends that everyone performs regular self-examinations and visits a dermatologist annually for a full-body skin examination. If you notice any suspicious spots or changes in your skin, it is important to seek medical attention right away. Remember, prevention and early detection are key to keeping your skin healthy and cancer-free.