Drinking astragalus water will cause constipation after drinking astragalus water for those who are strong in yang or have internal heat, because astragalus is mainly used to replenish qi and elevate yang. For those who are not deficient, but have internal heat, after drinking astragalus, it will promote the generation of yang heat, and over time it will deplete the fluid and hurt the yin, which will lead to the loss of moistening of the intestines, and will cause constipation. However, for physical weakness, Qi deficiency, usually lazy speech, tiredness, fatigue, you can use astragalus in water to replenish Qi and promote Yang. But at the same time, you also need to use medicines that generate fluids and moisten the intestines, for example, you can use schizandra, hemp seed kernel, and ulcerated plum kernel in combination with each other, which can improve the symptoms of constipation of this deficiency of qi. Therefore, it is necessary to differentiate the body type and whether it is appropriate to use Huang Qi to improve constipation. If yang qi is deficient, it is appropriate to use astragalus again or with other medicines to improve the symptoms of constipation.