Itchy skin may be caused by blood heat, in addition, blood deficiency, spleen deficiency and dampness may appear itchy skin symptoms, so just itchy skin, can not be determined to be caused by blood heat, but also need to be analyzed according to other accompanying symptoms. 1. Itchy skin caused by blood heat: clinical in addition to itchy skin, generally accompanied by red face, irritability and fear of heat, like cold drinks, dry mouth and thirst, sweating and other symptoms, generally due to feverish illnesses that do not get better, or vegetarian like spicy, greasy and irritating food, heat and toxins accumulated in the body over time. 2. Itchy skin caused by blood deficiency: blood deficiency can not nourish the skin, there will also be itchy skin symptoms, accompanied by dizziness, pale, tiredness (fatigue) and other symptoms, due to overwork or malnutrition, spleen and stomach weakness. 3. Itchy skin caused by spleen deficiency and dampness: patients with spleen deficiency and dampness will also have itchy skin, usually accompanied by stomach distension, sticky stools, dizziness, drowsiness, tiredness of the limbs, and white and greasy tongue coating with teeth marks and other symptoms. Itchy skin is not necessarily caused by blood heat, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to identify the cause of the disease, the cause of the treatment, do not take medication to delay the condition.