Itchy feet and itchy hands may be related to physiological factors, or may be caused by tinea pedis, eczema of the hands and feet, sweat herpes, limited urticaria and other causes. 1. Physiological factors: for example, in the hot summer mosquito bites to the skin of the hands and feet area, can cause itchy hands, itchy feet, can also be accompanied by pain, bulging and other symptoms. 2. Tinea pedis: due to fungal infection of the skin of the hands and feet, there will also be itchy hands and feet, accompanied by erythema, papules, blisters and other manifestations. 3. Eczema of the hands and feet: caused by contact with a variety of factors inside and outside the stimulus. When the hands and feet of eczema, it will cause itchy feet, itchy hands, may also be accompanied by local skin dryness and redness, or even erosion and other manifestations. 4. Sweat herpes: when the hands and feet after the appearance of sweat herpes, it may cause itchy hands, itchy feet, but also can be accompanied by cluster-shaped distribution of blisters, pain and other symptoms. 5. limited urticaria: when the hands and feet after the emergence of limited urticaria, can lead to itchy hands, itchy feet, can also be accompanied by local erythema, masses and other manifestations, more than considered to be due to hot and cold stimuli, medication, infectious factors, as well as mental and psychological factors and other reasons. Itchy feet and itchy hands may also be related to other factors, if the symptoms continue to be unable to relieve, or there are other discomforts, it should be taken seriously, as soon as possible to seek medical treatment, diagnose the cause, and then give targeted treatment.