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"Zhu" (Note/Transmission) means to stay or remain, indicating that the disease lingers and stays put, and upon death, the pathogenic factor may transmit to others nearby. "Du" (Poison/Toxicity) refers to the qi of ghostly toxicity. It enters the abdomen through food and drink. Sometimes it rises to the throat, feeling as if there is an object stuck there, unable to be swallowed or vomited; at other times, it wanders throughout the body, causing pain like being pierced by awls or knives. Because the condition lingers and remains for a long time, it is called "Du Zhu" (Toxic Note).

"Zhu" (Note/Transmission) means to stay or remain, indicating that the disease lingers and stays put, and upon death, the pathogenic factor may transmit to others nearby. "E Zhu" (Evil Note) involves evil toxic qi. When the human body is deficient, it becomes susceptible to this invasion. The toxic qi enters the meridians and then migrates to the heart and abdomen. Its manifestations include alternating, striking pain with no fixed location, hence named "E Zhu" (Evil Note).

"Zhu" (Note/Transmission) means to stay or remain, indicating that the disease lingers and stays put, and upon death, the pathogenic factor may transmit to others nearby. "Wu" (Clash/Antagonism) means to offend or clash. A person may suddenly experience striking pain in the heart and abdomen, leading to sudden faintness or oppression, which is called "Ke Wu" (Guest Clash). This results from offending the toxic vapors of ghosts and evils. Although treatment may alleviate symptoms initially, residual toxicity remains within the body, traveling with the blood and qi. Upon recurrence, it causes swelling or twitching of the muscles in the four limbs, or stabbing pain in the five zang organs. The condition comes and goes, changing unpredictably. Since this form of "Zhu" arises from such clashes, it is named "Zhu Wu" (Note-Clash).

"Zhu" (Note/Transmission) means to stay or remain, indicating that the disease lingers and stays put, and upon death, the pathogenic factor may transmit to others nearby. Due to bodily deficiency, one is invaded by pathogenic toxic qi, which lodges between the meridians and zang-fu organs. When it manifests, the four limbs feel heavy, and there is stabbing pain in the abdomen. Attacks occur without regular timing, and the disease presents without fixed patterns. Because the pathogen remains lodged and does not heal, it is called "Dun Zhu" (Hidden/Escaping Note). The *Yangsheng Fang* (Prescriptions for Nourishing Life) states: Leaning against a wall while sweating on the back can cause Dun Zhu. Additionally, consuming chicken meat together with otter meat can induce Dun Zhu in humans.

"Zhu" (Note/Transmission) means to stay or remain, indicating that the disease lingers and stays put, and upon death, the pathogenic factor may transmit to others nearby. When the human body is deficient and invaded by pathogenic qi, the pathogen travels with the blood. It may permeate the skin, causing intermittent, striking pain that wanders without a fixed location. Hence, it is called "Zou Zhu" (Running/Wandering Note). The *Yangsheng Fang* (Prescriptions for Nourishing Life) states: Consuming rice congee that tastes unusually sweet can transform into Zou Zhu. Furthermore, it affects the hypochondrium.

"Zhu" (Note/Transmission) means to stay or remain, indicating that the disease lingers and stays put, and upon death, the pathogenic factor may transmit to others nearby. If a person contracts a warm-heat disease and residual toxins are not cleared after recovery, they stagnate between the skin and flow into the interior of the zang-fu organs. This leads to weakness of blood and qi, poor appetite, alternating periods of rising and lying down, lingering illness that fails to resolve, and occasional fever. This condition is named "Wen Zhu" (Warm Note).