Itchy feet when washing feet may be caused by high water temperature, athlete’s foot, dermatitis and so on. 1. High water temperature: If the water temperature is too high when washing feet, for a longer period of time, it will stimulate the skin of the feet, resulting in the expansion of capillaries, which leads to an increase in blood flow to the feet, the phenomenon of epidermal detachment, resulting in itchy feet. 2. Tinea pedis: the disease is superficial skin fungal infection triggered by tinea pedis, the main pathogenic bacteria have red trichophyton, trichophyton fungus, etc., resulting in itchy feet when washing feet, the patient’s main manifestation is peeling, skin roughness and dryness, or moist vesicles. 3. Dermatitis: itchy feet when washing feet may be due to dermatitis, including atopic dermatitis, with infection, allergy, immunity, physical and other factors, accompanied by pain, burning sensation and other symptoms. If the symptoms are more serious, you need to go to the hospital in a timely manner, after a clear diagnosis under the guidance of the doctor to take targeted treatment.