Sympathetic nerve disorder can be detected through clinical symptoms and prone blood pressure monitoring, skin scratch test, eye pressure reflex and other tests. 1. Clinical symptoms: Sympathetic nerve disorder can appear in the circulatory system, respiratory system, digestive system, urinary system and other systems of excitation or inhibition changes. Such as palpitations (rapid heartbeat, often accompanied by panic), increased blood pressure, frequent urination, slow gastrointestinal motility, insomnia and so on. 2. Prone and standing blood pressure monitoring: the specific examination method is to detect whether the blood pressure and heart rate change significantly when the patient changes from prone to standing position. 3. Skin scratch test: the specific examination method is to use a cotton swab handle to gently scratch the skin and observe the time of localized pallor, if the time is longer, there may be sympathetic nerve disorder. 4. Pressure eye reflex: the specific examination method is to press the eyeball with a finger to detect whether the heart rate slows down accordingly. Sympathetic nervous disorder diagnosis is mainly based on clinical symptoms, so there are corresponding symptoms, it is recommended to consult a doctor in a timely manner, under the guidance of a clear diagnosis, targeted treatment.