Kidney deficiency is divided into kidney yin deficiency, kidney yang deficiency, kidney qi deficiency and kidney essence insufficiency. Eighteen-year-old patients with kidney deficiency need to choose the appropriate medication according to the specific situation, such as six flavors of dihuang pills, Zuoqi pill, right pill and so on. 1. Kidney Yin Deficiency: For eighteen year old kidney deficiency, patients can take Zhi Bai Di Huang Wan and other medications under the guidance of a doctor, which can nourish yin and tonify the kidneys, and improve the symptoms of lumbar and knee soreness (a feeling of soreness and weakness of the lumbar and knee areas), dry mouth and tongue, and heat of the hands, feet, and heart, etc. caused by kidney yin deficiency. 2. Kidney yang deficiency: For patients with kidney yang deficiency, Chinese medicines such as Jin Gui Kidney Qi Pills should be taken under doctor’s guidance, which have the effect of warming and tonifying kidney yang (warming and replenishing kidney yang qi), and can improve the symptoms of coldness and cold limbs (fear of coldness, cold limbs), sallow complexion, and tiredness and fatigue. 3. Kidney qi deficiency: Kidney qi deficiency can be seen as soreness and weakness of the waist and knees, shortness of breath, dizziness and forgetfulness. Male patients may experience impotence, premature ejaculation and spermatorrhea, while female patients may experience irregular menstruation, amenorrhea, and even infertility. You can use Seven-flavored Du Qi Pills to replenish kidney qi. 4. Kidney essence insufficiency: it can be seen in children with delayed development, delayed closure of fontanel, and slow movement. In men, it can be manifested as infertility with low sperm and in women, it can be manifested as amenorrhea. You can use Zuo Gui Wan to replenish kidney essence. Eighteen-year-old kidney deficiency is what medicine can not be generalized, and the patient should not blindly self-diagnosis, the patient needs to consult a doctor in a timely manner, under the guidance of the doctor to standardize the use of drugs.