Ying-Blood refers broadly to the two different stages in the identification of blood or warm diseases. 1. The basic theory of traditional Chinese medicine is that Ying is the essence of water and grains, i.e., the blood of the gas, the main nutrition of the whole body. Camp and blood are often mentioned together, referring to the blood, the main consecration of the body’s five viscera and six bowels, limbs and bones. 2. Qing Dynasty Ye Tianshi’s “Warm Fever Theory” put forward the Wei Qi Ying blood identification, that Ying blood for the dialectic of warm disease in two different positions or stages, the development process of warm disease can be divided into Wei points, gas points, camp points, blood points (in the warm disease Wei Qi Ying blood four periods, belong to the most in-depth stage or position), revealing the general law of warm disease spread. Heat entering the camp component often manifests as body heat aggravated at night, disturbed and insomnia (symptoms of disturbed heat in the heart and insomnia) or fainting and delirium, thirst, vague spots and rashes, reddish-red tongue, and fine and numb pulse. Heat entering the blood compartment manifests as burning heat in the body, restlessness or even delirium, spotting, or vomiting blood, epistaxis, or blood in the stool, with purple-red tongue and numbered pulse.