The first point is that it can cause digestive discomfort, more common is to have gastric disease, gastritis, gastric ulcer, after eating Cistanche can easily cause diarrhea, or acid reflux and other related symptoms of stomach discomfort. The second point is that it can speed up the development, for the underage patients should not eat Cistanche, otherwise that will make the development early, some will cause very serious adverse consequences, especially for men, it is likely to cause sexual dysfunction. The third point is that women should not eat Cistanche during menstruation, otherwise it will affect the appearance of menstrual blood and cause the accumulation of toxins in the body, which can easily induce gynecological diseases. The fourth point, constipation, Cistanche, is a warm supplement to Yang, for patients with constipation will aggravate their condition.