There is no inevitable connection between the cancer of moles and whether they are from childhood or not. The cases of moles that may become cancerous are as follows: 1) sudden expansion of the area can occur within a short period of time; 2) breakage; 3) uneven color of the surface of moles; 4) satellite foci, and the appearance of small moles around the treatment, there is a possibility of cancerous changes, for which a skin histopathological examination is needed, and it is necessary to remove the moles through surgery and then take microscope to see if there is malignant change. If there is a possibility, the mole should also be expanded, and during the treatment period, you should not pick the mole with your hands to avoid the possibility of cancer, and you should avoid alcohol.