Itchy smelly feet can be caused by physiological factors such as not paying attention to hygiene, or it can be caused by pathological factors such as tinea pedis and hyperhidrosis. 1. Physiological factors: do not pay attention to foot hygiene, wear breathable shoes lead to sweat is difficult to evaporate and other reasons can lead to itchy feet odor, mostly in the removal of the triggers can be relieved on their own. 2. Tinea pedis: Tinea pedis is an inflammatory skin disease caused by fungal infection of the skin of the feet, which occurs between the toes, soles, etc. It is mainly manifested as erythema, oozing, scaling, hyperkeratotic skin damage, accompanied by itching and other symptoms, and is usually accompanied by foot odor. 3. Hyperhidrosis: Hyperhidrosis is caused by a variety of reasons, refers to the normal living environment and conditions of the patient’s local or generalized skin abnormal sweating, of which the palm and plantar hyperhidrosis is the most common. Foot sweating due to sweat evaporation is not smooth, can lead to plantar skin impregnation white, and accompanied by foot odor, sweat may also stimulate the local lead to itching. Itchy smelly feet can also be caused by other reasons, after excluding physiological factors should be timely medical treatment, by the doctor according to the cause and symptoms of treatment.