There are many reasons for the yellowing of the soles of the feet, such as the yellow shoes and socks worn to color the soles of the feet; long-term wearing of ill-fitting shoes, work that requires long hours of standing or walking, repeated friction on the soles of the feet can grow “calluses”, that is, calluses; recently, if you eat a lot of vegetables and fruits containing carotene, may also appear on the soles of the feet or other parts of the skin Some liver and gallbladder diseases and blood system diseases may cause jaundice, making the soles of the feet look yellow, and such patients may also have manifestations of the primary disease.