Feet are very dry and rough to consider is due to non-disease factors, such as dry weather, age, etc.; but may also be caused by disease factors, such as chronic eczema, scaly keratosis pilaris, and so on. 1. Non-disease factors: Dry weather: occurring in the fall and winter, the skin of the feet can be dry and rough due to lack of moisture. Age: as people age, skin metabolism slows down, slowing down epidermal renewal and leading to dry and rough feet. 2. Disease factors: Chronic eczema: the etiology is not yet completely clear, mostly related to internal and external factors interacting with each other, occurring in the hands, feet, anus, vulva and other parts of the patient can be due to foot skin stimulation local erythema, pimples, can be accompanied by a strong sense of itchiness, in addition, the foot skin will be hypertrophic, dry and rough phenomenon, and there will be varying degrees of mossy changes and hyperpigmentation or hypopigmentation. Scaly Keratosis Pilaris: It is an infectious disease caused by fungal infection. The main features of scaly keratosis pilaris are furfuraceous scales and hyperkeratosis, and the patient’s foot skin manifests dryness, roughness, and thickening of keratin, etc. In addition, there are many other causes that can cause tinea pedis. In addition, there are many other reasons that can cause very dry and rough feet, it is recommended to go to the hospital in time to exclude non-disease factors, and then receive treatment as soon as possible, so as not to affect daily life.