There are many causes of white dots on the feet, such as palmoplantar keratosis, corns, plantar warts and so on. 1. palmoplantar keratosis: palmoplantar keratosis is mainly characterized by skin lesions on the palms of the hands and feet, such as thickening of the skin, hyperkeratosis, hands and feet show oval or rounded keratotic papules, papules are higher than the skin, the overall texture of the hardness, so the phenomenon of white dots on the feet. 2. Chicken eye: white dots on the feet also need to consider is chicken eye, chicken eye is mainly due to long-term friction, stimulation, pressure caused by the proliferation of the stratum corneum, can show a pea-sized keratin embolism, most of the white, yellowish, and walking up and down the road may also be accompanied by pain. 3. metatarsal warts: metatarsal warts is infected with human papilloma virus caused by the skin superfluous organisms, early lesions for the small keratinized papules, later will gradually increase, the overall texture of the hard, the color of the main yellowish, white, tawny, the surface is rough. There are many reasons why there are white dots on the feet, after the symptoms, it is recommended to go to the hospital in time to improve the examination, clear diagnosis, give targeted treatment.