Cistanchis is a yang tonic, mainly used for kidney yang deficiency, patients with yin deficiency should not use this medicine. Cistanchis has the effects of tonifying kidney yang, benefiting essence and blood, moistening the intestines and relaxing the bowels. It is mainly used for impotence and infertility caused by kidney yang deficiency, lumbar and knee soreness (the feeling of soreness and weakness in waist and knees), weakness of tendons and bones, cold hands and feet, white color, diarrhea in the fifth day of the month (diarrhea before dawn), frequent urination, and other symptoms. It should be noted that Cistanchis is warm in nature, and should not be taken by those who are suffering from yin deficiency (deficiency of yin essence in the body and hyperactive fire), solid heat in the stomach and intestines, or constipation with hot constipation; it also has the effect of sliding the intestines, and is not suitable for those who suffer from loose stools (loose and unshaped feces). Patients with symptoms should consult a doctor in a timely manner, under the guidance of a professional physician to standardize the treatment, do not blindly use their own medication, so as not to cause adverse consequences.