Melanoma is one of the most dangerous skin neoplasm that, in many cases, may give spreads at an early stage. At the moment, it is the most frequent cause of death due to skin cancer. Melanoma is visible on the skin very quickly at early stages of its development, therefore doctors recommend self-examination of pigmented moles once a month. In particular, we should pay attention to moles that are irregular in shape, of uneven edges, multi-colour, changing in a short time and exceed 5 mm. When any suspicious changes are noticed, it is advisable to see a doctor who will carry out relevant diagnostic tests – dermoscopy and video-dermoscopy.