邪气在皮肤间游走，就会引起瘙痒；如果停留时间长久不离去，就会形成痹证。卫气因此不能正常运行，导致肌肉麻木僵硬、失去知觉。
虚邪偏侧侵袭身体的一半，如果侵入较深，内居于营卫之中，当营卫之气逐渐衰弱时，真气就会耗散，只有邪气独自留存，从而引发偏枯（半身不遂）。如果邪气侵入较浅，则表现为半边经脉疼痛。
这段话阐述的是邪气偏侧受伤的情况：如果邪气侵入深重，就会造成偏枯，即半身不遂；如果侵入较浅，就会导致一侧经脉疼痛，这是因为真气耗散，而邪气占据所致。
虚邪侵入人体很深，寒邪与热邪相互搏结，长时间停留并深入体内固定下来。如果寒邪胜过热邪，就会导致骨骼疼痛、肌肉枯萎；如果热邪胜过寒邪，就会导致肌肉腐烂化脓，向内损伤骨骼，形成骨蚀（骨质坏死）。如果疾病先前发生在筋脉，导致筋脉拘屈不能伸展，邪气停留在其间无法返回消散，就会形成筋溜（筋部肿块）；如果有邪气结聚，正气趋向于它，卫气留滞其中，不能……
If it moves through the skin, it causes itching; if it lingers for a long time without departing, it becomes Bi syndrome (obstruction syndrome). The Wei Qi (Defensive Qi) is thereby prevented from circulating freely, resulting in muscles that are numb and insensible.
When Xu Xie (Empty/False Pathogens) invades only half of the body and penetrates deeply, residing within Ying Qi (Nutritive Qi) and Wei Qi (Defensive Qi), as Ying and Wei Qi gradually decline, the Zhen Qi (True/Essential Qi) departs, leaving only the pathogenic factor to remain alone, leading to Pian Ku (hemiplegia). If the pathogenic factor is shallow, there is pain in the meridians on one side.
This passage discusses the injury caused by pathogens attacking one side: deep invasion results in Pian Ku (hemiplegia) or paralysis of half the body; shallow invasion results in pain in the meridians on one side, because the True Qi has been depleted while the pathogen occupies the space.
When Xu Xie enters the body deeply, Cold and Heat contend with each other. After lingering for a long time, they become fixed internally. If Cold overcomes Heat, it causes bone pain and muscle emaciation; if Heat overcomes Cold, it causes rotting flesh and腐 muscle forming pus, damaging the bones internally, leading to Gu Shi (bone erosion/necrosis). If a disease previously affected the sinews, causing them to contract and unable to extend, and the pathogen remains between them without returning/disappearing, it develops into Jin Liu (sinew lump); if there is an accumulation, Qi converges upon it, Wei Qi (Defensive Qi) stays there, unable to...