Black spots on feet may be caused by hyperpigmentation, pigmented nevus, common warts and other factors.
1. Hyperpigmentation: Inappropriate shoes, long time exercise, excessive friction on the skin of the feet will cause hyperpigmentation, which will lead to localized black spots on the feet without other clinical symptoms.
2. Nevus pigmentosus: the black spots on the feet may be the existence of nevus pigmentosus, usually papillomatous papules, can be a single appearance, can also be more than one appearance, nevus pigmentosus will be one to several black hairs, painless and itchy.
3. common warts: usually caused by viral infections, can lead to the appearance of gray-brown pimples on the skin of the feet, similar to black spots, the surface is relatively rough, hard texture, may be accompanied by mild itching and tingling.
If the number of black spots on the feet is high or the size is large, it is recommended to consult a doctor in time.