Foot fungus that is tinea pedis, feet with thick calluses may be related to scaly keratosis pilaris, but may also be the callus and other diseases caused. 1. scaly keratosis pilaris: the cause of its more and skin fungus infection foot related, the foot will appear hyperkeratosis, keratin thick situation, there will be dry, rough and flaky symptoms, some patients may appear foot callus. 2. callus: callus is commonly known as callus, its development and local skin horny layer overgrowth related, including long-term friction, pressure and other mechanical stimuli. The patient’s skin will appear rough, thickened and hard bulge. Feet with thick calluses may be related to scaly keratosis pilaris, but does not belong to the only reason, it may also be caused by other diseases, it is recommended that patients go to the regular hospital to clarify the cause of the disease.