The back of the hands and neck itch may be due to a number of reasons, such as contact with irritants, allergic substances, mosquito bites itchy skin, etc., need to clarify the cause of the disease in time to treat. In the clinic can lead to dermatitis appear more causes, such as chemical stimulation, local or systemic allergies, mosquito bites, cold, spicy food stimulation, etc., when removed from the stimulation of external factors, the patient’s symptoms can be relieved naturally. Allergy-induced itching, when serious, can follow the doctor’s instructions to take anti-allergy drugs, and stay away from allergens. If the itching on the back of the hands and neck of the patient is caused by pruritus, the possible causes are diabetes, uremia, biliary cirrhosis, AIDS and so on. The itching symptoms usually start from one place and gradually spread to the whole body, with paroxysmal attacks, which can be aggravated at night, and in severe cases, even skin erythroderma and pyoderma may appear. Therefore, when patients have abnormal itching symptoms on the back of the hands and neck, they should consult a doctor in time to clarify the cause of the disease, and treat it as soon as possible, which can improve the prognosis.