Patients with Yang deficiency can take ginseng, but they should pay attention to the appropriate amount, preferably according to medical advice. Theoretically, Chinese medicine believes that “Yang transforms Qi, Yin forms”, Yang can transform Qi, and in turn Qi can help Yang, the two complement each other. Therefore, in clinical practice, when doctors treat patients to warm Yang, they often supplement it with Qi, so ginseng is also a common medicine. For example, in the traditional version of Si Wei Tang, instead of three herbs, there are four herbs, namely ginseng, Radix et Rhizoma, Radix ginger, and roasted licorice, of which ginseng is two. This amount can make a big difference in the absence of ginseng. Therefore, experienced physicians often supplement the treatment with ginseng when treating Yang deficiency in patients, but the overuse of ginseng may cause a state of deficiency if the patient cannot adapt, that is, when the function is not sufficient to utilize these drugs.