If the bumps look similar to blisters, are hard to the touch, have roots, are fixed and do not move, and will gradually increase in size over time, it is possible that the plantar warts are caused by infection with the human papilloma virus. If the bumps on the soles of the feet are strongly itchy and distributed in patches, it may be blister type foot fungus, and it is recommended to go to the local hospital for fungal testing, and if the fungus is positive, the diagnosis can be confirmed. It is a typical lesion formed by a fungus that stimulates the local skin in the process of metabolism and proliferation.