The manifestations of Yin deficiency and internal heat in men are hot flashes (a burst of heat), night fever, or five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest heat) and so on. Clinical symptoms of Yin deficiency and internal heat in men mainly manifest as hot flashes, night fever, or five heart-quiet heat, and most of them are accompanied by night sweating (abnormal sweating after going to sleep, and the sweating stops after waking up), dry mouth, red tongue, and thin and numberless pulse (the pulse becomes narrower and thinner and the rate accelerates), and so on. In daily life, patients with Yin deficiency and internal heat should adopt good living habits, maintain optimism, engage in appropriate outdoor activities, and follow doctor’s instructions for regular checkups in order to improve their condition as soon as possible. If obvious symptoms of discomfort occur, they should consult a doctor promptly.