Damp-heat of the liver and gallbladder and Yin deficiency and fire exuberance can be distinguished mainly from the symptoms, such as the former mainly manifested as dry mouth and bitter mouth, distension and pain in the abdomen and ribs, etc.; the latter mainly manifested as hot flashes and night sweating (sweating abnormally after going to sleep, and sweating stops after waking up), and soreness and weakness of the waist and knees. 1. Damp-heat in liver and gallbladder is mainly related to external damp-heat and dietary irregularities, etc. The basic pathogenesis is that damp-heat is embedded in the liver and gallbladder (damp and heat evils accumulate with each other in the body), and there is a malfunction of detachment and excretion, which is mainly manifested as dry mouth and bitter mouth, burning and distending pain of the ribs and coxae, loss of appetite, nausea and vomiting, yellowish coloration of the eyes and the body and wet-heat leucorrhea and other symptoms. 2. The occurrence of yin deficiency and fire exuberance is mostly related to factors such as overwork, old age and prolonged illness, as well as sexual misconduct, etc. The basic pathology is that yin qi is deficient, and there is no way to restrain yang qi, thus resulting in the state of yang qi biased deficiency and heat, with the clinical manifestations of dizziness, five heart-quiet heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest), hot flashes and night sweating, and lumbar and knee soreness and tenderness. Damp-heat of the liver and gallbladder and Yin deficiency and fire are two different types of Chinese medicine illnesses (the former is real and the latter is imaginary), and their differentiation and treatment should be carried out by professional Chinese medicine practitioners.