Traditional Chinese medicine believes that if the middle is full, it will be expelled from the inside. The meaning of this sentence is that when there is a feeling of fullness in the body, excess substances can be expelled through the method of diarrhea to achieve the purpose of treatment.
In traditional Chinese medicine theory, there is a balance mechanism within the human body. When abnormal situations occur in the body, the body will adjust and restore balance through various means. If there is excessive food intake or dysfunction of the spleen and stomach, it can lead to a feeling of fullness in the body. At this point, doctors will use some laxative drugs or techniques to help patients eliminate excess substances and alleviate symptoms.
中医认为，中满者，泻之于内。这句话的意思是，当体内出现满胀的感觉时，可以通过泻下的方法来排出多余的物质，达到治疗的目的。

在中医理论中，人体内部有一个平衡的机制，当体内出现异常情况时，身体会通过各种方式来调整和恢复平衡。如果食物摄入过多，或者脾胃功能失调，就会导致体内出现满胀的感觉。这时，医生会采取一些泻下的药物或手法来帮助患者排出多余的物质，以减轻症状。