There are many reasons for itchy hands and feet, including peripheral neuropathy and electrolyte disorders. 1. Peripheral neuropathy: If you suffer from diabetes, peripheral neuritis may occur, and symptoms such as tingling and itching of hands and feet may occur. It is necessary to control blood sugar, and then can be given under the guidance of the doctor to improve the nutritional nerve drugs. 2. Electrolyte disorders: due to diarrhea, vomiting and other conditions, can lead to water and electrolyte disorders in the body, resulting in numbness of the hands and feet and other symptoms. It is recommended to correct the situation so as to improve the symptoms. Numbness of the hands and feet, itchy skin and other symptoms suggest timely access to hospitals, for different reasons, should be under the guidance of the doctor for targeted treatment.