Kidney yang deficiency is different from kidney yin deficiency in terms of etiology, clinical manifestations and treatment, and it is recommended to treat it under the guidance of a professional doctor. Kidney yang deficiency is mostly caused by physical yang deficiency, or high age and kidney deficiency, injury to yang from prolonged illness, or over-exertion of housework. The patient manifests as lumbar and knee soreness and weakness (lumbar and knee soreness and weakness feeling) cold pain, fear of cold limbs cold (fear of cold, cold limbs), white or sallow face, fatigue, frequent urination, long and clear urination, nocturia. Or frigidity of sexual desire, impotence, spermatorrhea, premature ejaculation in men, infertility in women, leucorrhea, clear and sparse amount, and so on. Patients with kidney yang deficiency are mainly treated by tonifying the kidney and boosting yang, and can use antler velvet, Epimedium, Morinda citrifolia, Cistanches and other medicines, or Chinese medicines such as Jin Gui Kidney qi Pill and Yu Gui Pill to treat the condition. Kidney yin deficiency is mostly caused by prolonged illness and kidneys, or injury to yin in the late stage of warm-heat disease, or excessive consumption of warm, dry and yin-robbing products, or indiscretion in the room, which depletes the kidney yin. The patient manifests as waist and knee pain, dizziness, tinnitus, insomnia, dreaminess, thinness, hot flashes (a burst of fever), night sweating (abnormal sweating after going to sleep, waking up sweating stops), spermatorrhea and premature ejaculation in men, women’s menstrual period is less than menstrual closure, and so on. Treatment for patients with kidney yang deficiency focuses on nourishing yin and benefiting the kidneys, and may include the use of medicines such as Huang Jing (yellow essence), Chinese wolfberry (wolfberry), mulberry (mulberry), tortoise board (turtle board), etc. or proprietary Chinese medicines such as Liu Wei Di Huang Wan (six flavors of di Huang Huang Wan) and Zuo Gui Wan (Zuo Ji Wan). If there is a need for medication, it is recommended that it be used under the guidance of a professional physician, and not blindly self-medication.