Itchy face and itchy body may be caused by physiological factors such as dry climate, or it may be caused by hives, eczema and other diseases. 1. Physiological factors: If the ambient temperature is too high, humidity is poor, or the patient does not pay attention to skin moisturizing recently, it may lead to the face as well as the body skin is too dry, which will appear face itchy and body itchy situation. 2. Urticaria: The causes are mostly related to food and drug allergies, infections, skin contacts and many other factors. Patients are mainly manifested as wind, angioedema, and accompanied by obvious itching. 3. Eczema: the cause of eczema is mostly considered to be related to immune abnormalities, heredity, hormonal changes in the body and other factors, and it occurs on the face, body and any other parts of the body surface. Patients are mainly characterized by erythema, papules, flaking, itching and other symptoms. There are many reasons for itchy face and itchy body, after excluding physiological factors, patients can go to the hospital to clarify the cause.