Small holes on the soles of the feet that look like bug eyes may be caused by diseases such as fossa keratolytica and plantar warts. 1. Keratosis Pilaris: Keratosis Pilaris may be caused by bacterial infections on the soles of the feet. Triggering factors include increased sweating of the feet, wearing non-breathable shoes and socks for a long time, etc. Skin rashes of skin color, brown or black may appear, which may be manifested as small holes like bug eyes. 2. metatarsal warts: metatarsal warts are caused by human papilloma virus infection, which can be spread through direct contact, indirect contact and other ways of infection, patients will remove the cuticle, there may be capillary rupture around the formation of small black dots, there will be small holes like worm’s eye phenomenon. There are more causes of small holes on the soles of the feet like bug eyes, it is recommended to go to the hospital in time, standardized treatment under the guidance of the doctor.