In the first round, Yan Qiu versus Li Yifei, both using the "observation" technique, one of the four basic methods of Traditional Chinese Medicine. The idea is to observe the color and appearance of the patient to determine their illness. They can look at various parts of the body but cannot ask questions or physically touch the patient.
This is somewhat of an obstacle for Li Yifei, but not a major one. He has devised some strategies over the past few days and conducted some experiments. With his current level of cultivation, his True Qi can extend beyond his body, enhancing his sensory capabilities. Simply put, he can deduce certain clues from the patient's subtle changes. Li Yifei even specially studied the pathological changes of some diseases and their external manifestations.
