Night sweating (abnormal sweating after going to sleep and stopping sweating after waking up) belongs to the manifestation of yin deficiency, which can be seen in the manifestation of yin deficiency and internal heat, qi and yin deficiency (qi and yin deficiency), and other diseases, which need to be judged from the patient’s other clinical manifestations. Yin deficiency and internal heat syndrome: night sweating can be seen in Yin deficiency and internal heat syndrome, because of excessive worry, the evil heat consumes the yin fluid, and the fire is generated, so the sweat can not be hidden, but will be leaked, which leads to the symptoms of night sweating. It can be accompanied by hot flashes (a burst of heat), five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest), restlessness and insomnia, and dry mouth and throat. Qi and Yin deficiency: When accompanied by symptoms such as fatigue (mental exhaustion and physical weakness), palpitations (rapid heartbeat, often accompanied by panic), dry mouth and thirst, shortness of breath, loss of appetite, and a reddish tongue, it is usually due to a deficiency of both Qi and Yin. Because of qi deficiency the psyche (pores) is lax and yin deficiency is not able to store its own fluids, resulting in symptoms such as night sweating. The symptoms of night sweating should be consulted in time to clarify the cause, and the doctor will guide the standardized treatment to avoid delaying the condition.