The main symptoms of yin deficiency in men are hot flashes (a burst of heat), night sweats (abnormal sweating after going to sleep and stopping sweating after waking up), heat in the heart (heat in the heart of the hands and feet, and self-consciousness of heat in the heart and chest), and dryness of the mouth and throat, among other symptoms. It can be categorized into heart yin deficiency, stomach yin deficiency, liver yin deficiency, lung yin deficiency, kidney yin deficiency and so on. 1. Yin deficiency of the heart is mainly characterized by insomnia, palpitations (rapid heartbeat, often accompanied by panic), irritability, and heat in the hands and feet. It can be treated by nourishing yin and nourishing the heart. 2. Stomach Yin deficiency is mainly characterized by hunger but no desire to eat, noisy stomach (stomach feeling similar to hunger, emptiness with burning), stomach pain, vomiting, etc. The treatment method can be nourishing Yin and nourishing the stomach (replenishing Yin and nourishing the heart). It can be treated with medicines that nourish yin and benefit the stomach (replenish yin fluid and enhance the function of the stomach and internal organs). 3. Liver yin deficiency is mainly characterized by blurred vision, dizziness, headache, tinnitus, and pain in both sides. It can be treated with drugs that nourish yin and tonify the liver. 4. Lung yin deficiency is mainly manifested as dry cough with little sputum, hoarse cough, or accompanied by coughing up blood, heart and chest heat and other symptoms. You can choose to nourish yin and nourish the lungs for treatment. 5. Kidney yin deficiency is mainly manifested by lumbar and knee soreness and weakness (the feeling of lumbar and knee soreness and weakness), spermatorrhea and enuresis, and symptoms such as heat in the heart. You can choose to nourish the yin and tonify the kidney medication for treatment. The use of specific drugs need to be under the guidance of a physician, if the body is not feeling well, it is recommended to go to the hospital in a timely manner.