There is no such thing as itchy toes to be wary of four diseases, itchy toes may be related to skin allergies or due to ringworm, frostbite and other causes. 1. Skin allergy: especially itself for allergic body, in the feet after contact with certain substances, such as newly bought socks without washing directly wear, or contact with pollen, animal hair and other substances, is likely to cause feet skin allergies, thus causing itchy toes. 2. Tinea pedis: usually caused by fungal infections of the skin of the feet, due to fungal infections can lead to localized inflammatory reaction of the skin of the toes, under the stimulating effect of inflammation, it may cause itchy toes, which may also be accompanied by local blisters, peeling and other symptoms. 3. Frostbite: common in cold winter, if long stay in the cold environment, do not pay attention to foot warmth, resulting in frostbite toes, may cause itchy toes, especially in the heat of the toes after the itching is particularly obvious, but also can be accompanied by foot skin ulceration, pain and other symptoms. Itchy toes can also be caused by other reasons, if the symptoms continue to be unable to relieve, or there are other obvious discomfort, it is recommended to seek medical attention as soon as possible to diagnose the cause of the targeted treatment.