Kidney deficiency can be categorized into kidney yang deficiency, kidney yin deficiency, etc. It can be treated by taking medicines such as Cistanchis, Cinnamon, Radix Rehmanniae Praeparata and Herba Mollis under the guidance of physicians. 1. Cistanchis: It has the effect of tonifying the kidney and assisting yang, moistening the intestines and relaxing the bowels. It can be used for impotence and premature ejaculation caused by deficiency of kidney yang and insufficient essence and blood, infertility caused by uterine coldness, lumbar and knee pain, impotence, constipation caused by dryness of the intestines, fluid and constipation. Attention to yin deficiency and fire (deficiency of yin and essence in the body, hyperactive fire) and loose stool (feces thin and unshaped) diarrhea should be avoided, hot constipation should not be served. 2. Cinnamon: has a complementary fire to help Yang (supplementing the body’s yang), dispersing cold pain (by removing the body’s cold to relieve pain), blood circulation and menstruation effect, can be used for kidney yang deficiency (lack of yang in the kidney) caused by impotence cold, cold pain in the abdomen (the location of the heart and abdomen to feel the cold and pain), and so on. Note that people with deficiency of yin and fire should not use, and people with bleeding tendency and pregnant women should be cautious. 3. Radix Rehmanniae Praeparata: It has the effect of tonifying blood and nourishing yin, benefiting the essence and filling the marrow, and can be used for lumbar soreness and knee weakness caused by kidney yin insufficiency, night sweating (sweating abnormally after falling asleep, but sweating stops after waking up), spermatorrhea, and so on. Note that this product is prohibited for those who are allergic to this product, allergic people should be cautious. 4. Tortoise shell: it has the effect of nourishing yin and submerging yang, benefiting the kidney and strengthening the bones, etc. It can be used for yin deficiency and internal heat, night sweating of bone vapor, etc.. Pregnant women and people with cold and damp stomach should not use it. Specific medication should be carried out under the guidance of a physician, do not take medication without authorization, so as not to avoid delaying the condition.