The black spots found on the soles of the feet may be caused by pigmented nevi or plantar warts caused by viral infections, which can be examined at the hospital to determine the properties of the lesions and then treated professionally.1, pigmented nevi: mainly including intradermal nevi, junctional nevi, compound nevi, etc. The more common lesions occurring on the soles of the feet are junctional nevi. Junctional nevus is a kind of benign skin growth, mainly manifesting as round, oval or irregular brown flat plaques, and generally without any discomfort under normal circumstances. However, junctional nevus occurring on the bottom of the foot has a higher possibility of malignant transformation. If it rapidly becomes larger, darker or painful within a short period of time, it needs to be diagnosed and treated in hospital in time, and physical treatment, such as ion laser, is usually used. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The wart is usually asymptomatic, but can sometimes be painful after standing or walking. The main reason for this is that it is a viral infection that is transmitted through skin-to-skin contact. The actual fact is that you can choose laser, freezing, medication, or surgery for larger lesions.