There is no clear correspondence between syncopated yin disease (a condition caused by the invasion of the syncopated yin meridian by an exogenous pathogen) and present-day diseases. Sycosis is the final stage of the six meridians of typhoid fever. For the essence of syncope yin disease, there is no definite conclusion, the more consistent view is to understand from the perspective of internal organs, meridians and qi. Sycosis of the disease in the liver and pericardium, and will affect the spleen and stomach, involving the meridians for the hands and feet syncopal meridian. The pathogenesis of syncopal disease is mainly due to the loss of liver regulation, yin and yang imbalance, yang and in the upper, yin and in the lower. Its symptomatic manifestation of upper heat and lower cold, mixed cold and heat (the same patient at the same time cold and heat), syncopal fever wins and recurrence of mainly cold limbs (cold limbs, or even cold to the elbows and knees), vomiting, retching, diarrhea and limb syncopal fever and other symptoms alternately. Nowadays, the application of syncopal diseases is mainly based on the above symptoms, and the type of symptoms is deduced after the four diagnostic methods are combined, and the corresponding treatment will be applied to those who meet the above symptoms. Many diseases may have the above symptoms, while the symptoms associated with syncopal disease may only appear at a certain stage of the disease. Therefore, syncopal disease does not correspond to the current disease. If the body appears syncope, vomiting and other uncomfortable symptoms, should promptly go to the hospital for standardized treatment, not to deal with it on their own, so as not to delay the condition.