Cistanche belongs to the group of medicines for warming and tonifying kidney yang (warming and replenishing the yang energy of the kidneys). If diabetic patients suffer from deficiency of kidney yang (lack of yang energy of the kidneys), with symptoms such as lumbar and knee impotence, lack of warmth in the hands and feet, and long and clear urination, it can be taken according to the doctor’s prescription. It is recommended to use the medication under the guidance of a professional physician. Diabetes mellitus is a common endocrine disease in Western medicine, clinical symptoms of “three more and one less” that is, more drinking, more eating, more urination, emaciation as a typical symptom, belongs to the Chinese medicine “thirst” category. Although the basic pathology of thirst is based on yin deficiency, if the disease lasts for a long time, it is easy to have yin damage and yang, resulting in the evidence of both yin and yang deficiency. Cistanchis have the effect of tonifying kidney and yang, benefiting essence and blood, lubricating and laxative, commonly used in lumbar and knee impotence, warmth in hands and feet, fear of cold, long and clear urination or frequent urination at night, dry stools, impotence and premature ejaculation, infertility of women, uterine cold and menstrual cramps and other diseases. Stomach weak loose stool (feces thin and not shaped), phase fire is not recommended. Therefore, when diabetic patients suffer from kidney yang deficiency, they can take Cistanchis. However, it should be noted that the effect of a single Chinese medicine is weak, and it can be used together with other medicines under the guidance of Chinese medicine practitioners to achieve the best therapeutic effect.