Insomnia, night sweating and frequent urination are mostly caused by kidney yin and yang deficiency, and heart and kidney failure. Kidney yin deficiency can be characterized by fever in the hands and feet, dizziness and tinnitus, lumbar and knee tenderness (a feeling of soreness and weakness in the lumbar and knee regions), hot flashes (a burst of heat), night sweats (abnormal sweating after going to sleep, but sweating stops after waking up), insomnia, and other symptoms. If accompanied by yang deficiency, frequent urination may occur, which is considered to be a manifestation of both yin and yang deficiency, and needs to be treated with yin and yang tonic after dialectical treatment. Heart-kidney disharmony (heart fire, kidney yin deficiency, heart and kidney physiological dysfunction) refers to the lack of kidney yin affecting the heart yin, resulting in heart fire, heat in the body, water and fire do not help the emergence of dreams, insomnia, night sweating, frequent urination and other symptoms. Under the guidance of a doctor, the symptoms need to be treated using methods such as transportation between the heart and kidney (heart fire descends and kidney water rises to control each other). If you have symptoms, you should take medication under the guidance of a professional doctor, do not blindly take medication on your own, in order to avoid delaying the condition or producing adverse reactions.