A patient with phytoneurologic dysfunction may experience an increase in blood pressure or a decrease in blood pressure. Phytoneurologic dysfunction is primarily caused by an imbalance between the sympathetic and parasympathetic nerves. If a patient develops parasympathetic nerve damage, it may lead to sympathetic hyperfunction, which may result in increased blood pressure, and may be accompanied by symptoms such as rapid breathing and rapid heart rate. If the patient has sympathetic nerve damage, it may lead to parasympathetic hyperfunction, which may lead to a decrease in blood pressure, and may also be accompanied by symptoms such as slow heart rate and pupil constriction. When patients with phytoneurological dysfunction experience abnormal blood pressure, it is recommended that they be admitted to the hospital for examination and cooperate with the doctor for standardized treatment.