Phytoneuropathy, also known as autonomic dysfunction, is a condition in which the autonomic nervous system does not work properly. Autonomic dysfunction has many causes, and many diseases can also manifest as autonomic dysfunction, such as Parkinson’s disease, multiple system atrophy, dementia with Lewy bodies, and autoimmune autonomic neuropathy. The autonomic nervous system is an integral part of the peripheral nervous system, including the sympathetic nervous system and parasympathetic nervous system, which mainly innervates the cardiac muscle, smooth muscle, visceral activity and glandular secretion, and is innervated and regulated by the cerebral cortex and the hypothalamus, and is not subject to volitional control. When vegetative nerve dysfunction occurs, the clinical manifestations may involve multiple systems of the body, and patients may experience a wide range of symptoms, such as chest tightness, breathlessness, panic, stomach pain, bloating, vomiting, diarrhea, headache, dizziness, blurred vision, insomnia, amnesia, numbness of the skin, tightness around the body, and warmth of the hearts of the hands and feet, which are often accompanied by mood changes such as anxiety, nervousness, and depression. If the above symptoms are not relieved, you should go to the hospital in time to clarify the cause of the disease and under the guidance of the doctor for treatment.