霍乱者，由人温凉不调，阴阳清浊二气，有相干乱之时，其乱在于肠胃之间者，因遇饮
食而变发，则心腹绞痛。其有先心痛者，则先吐；先腹痛者，则先利；心腹并痛者，则吐利
俱发。挟风而实者，身发热，头痛体疼而复吐利；虚者，但吐利，心腹刺痛而已。亦有饮酒
、食肉、腥脍、生冷过度，因居处不节，或露卧湿地，或当风取凉，而风冷之气归于三焦，
传于脾胃，脾胃得冷则不磨，不磨则水谷不消化，亦令清浊二气相干，脾胃虚弱，便则吐利
，水谷不消，则心腹胀满，皆成霍乱。
霍乱有三名∶一名胃反，言其胃气虚逆，反吐饮食也；二名霍乱，言其病挥霍之间，便
致撩乱也；三名走哺，言其哺食变逆者也。
诊其脉来代者，霍乱；又脉代而绝者，亦霍乱也。霍乱，脉大可治，微细不可治。霍乱
吐下，脉微迟，气息劣，口不欲言者，不可治。
《养生方》云∶七月食蜜，令人暴下，发霍乱。
冷热不调，饮食不节，使人阴阳清浊之气相干，而变乱于肠胃之间，则成霍乱。霍乱而
心腹痛者，是风邪之气客于脏腑之间，冷气与真气相击，或上攻心，或下攻腹，故心腹痛也
冷热不调，饮食不节，使人阴阳清浊之气相干，而变乱于肠胃之间，则成霍乱。霍乱而
呕吐者，是冷气客于腑脏之间，或上攻于心，则心痛，或下攻于腹，则腹痛。若先心痛者，
则先吐，先腹痛者，则先利。而此呕吐，是冷入于胃，胃气变乱，冷邪既盛，谷气不和，胃
气逆上，故呕吐也。
霍乱病，是由于人体对冷暖调节不当，导致阴阳二气和清浊二气相互干扰紊乱。这种紊乱发生在肠胃之间时，如果遇到饮食刺激就会发作，引起心腹剧烈绞痛。如果先出现心痛症状，就会先呕吐；先出现腹痛症状，就会先腹泻；如果心腹同时疼痛，则呕吐和腹泻会同时发生。兼夹风邪且体质实盛的，身体发热、头痛、全身疼痛并伴有呕吐腹泻；体质虚弱的，仅表现为呕吐腹泻，以及心腹部的刺痛。也有因为饮酒过量、吃肉过多、食用生冷腥腻食物过度，加上起居无节制，或者露天睡在潮湿地方，或者对着风口乘凉，导致风寒之气侵入三焦，传至脾胃。脾胃受寒后无法运化食物，不能运化则水谷无法消化，这也导致清浊二气相互干扰。脾胃虚弱，就会出现呕吐腹泻，水谷不消化，导致心腹胀满，这些都形成霍乱。
霍乱有三种名称：一名“胃反”，意思是胃气虚弱上逆，将饮食反吐出来；二名“霍乱”，意思是病情变化迅速，顷刻间就造成撩乱；三名“走哺”，意思是进食后发生气逆。
诊察脉象，如果出现代脉（脉搏跳动有规律地间歇），是霍乱；如果脉象代而微弱欲绝，也是霍乱。患霍乱，脉象大的可以治疗，脉象微细的难以治疗。霍乱吐泻，脉象微迟，气息微弱，不想说话，属于不可治。
冷热不调，饮食不节，使人体的阴阳清浊之气相互干扰，在肠胃之间变乱，从而形成霍乱。霍乱伴随心腹疼痛，是风邪之气客居在脏腑之间，冷气与人体真气相撞击，有的向上攻冲心脏，有的向下攻冲腹部，所以心腹疼痛。
冷热不调，饮食不节，使人体的阴阳清浊之气相互干扰，在肠胃之间变乱，从而形成霍乱。霍乱伴有呕吐，是冷气客居在脏腑之间，有的向上攻冲心脏，就会心痛；有的向下攻冲腹部，就会腹痛。如果先心痛，就先呕吐；先腹痛，就先腹泻。这种呕吐，是因为寒气进入胃部，导致胃气紊乱，寒邪强盛，谷气不和，胃气上逆，所以发生呕吐。
Huo Luan (acute vomiting and diarrhea syndrome) is caused by the body's inability to adjust properly to temperature changes, leading to interference and disorder between Yin and Yang Qi and Clear and Turbid Qi. When this disorder occurs in the intestines and stomach, it is triggered by dietary intake, resulting in severe cramping pain in the heart and abdomen. If heart pain appears first, vomiting occurs first; if abdominal pain appears first, diarrhea occurs first; if both heart and abdominal pain occur simultaneously, vomiting and diarrhea happen together. Those with excess patterns complicated by Wind may experience fever, headache, body aches, accompanied by vomiting and diarrhea; those with deficiency patterns present only with vomiting and diarrhea, along with stabbing pain in the heart and abdomen. There are also cases caused by excessive consumption of alcohol, meat, raw or cold foods, combined with irregular living habits, such as sleeping exposed on damp ground or cooling off in front of drafts. This allows Wind-Cold Qi to enter the San Jiao (Triple Burner), transmitting to the Spleen and Stomach. The Spleen and Stomach, affected by Cold, lose their ability to transform and transport; consequently, food and fluids fail to digest. This also causes Clear and Turbid Qi to interfere with each other. With Spleen and Stomach Qi deficiency, vomiting and diarrhea ensue, undigested food leads to fullness and distension in the heart and abdomen, all constituting Huo Luan.
Huo Luan has three names: one is Wei Fan (Stomach Reversal), referring to the deficiency and rebellious nature of Stomach Qi causing food to be vomited up; two is Huo Luan, describing how the disease strikes suddenly and causes chaos; three is Zou Bu (Wandering Nourishment), indicating that eating leads to rebellion and reversal.
Upon pulse diagnosis, the appearance of Dai Mai (Intermittent Pulse) indicates Huo Luan; similarly, a Dai Mai that is faint and nearly absent also indicates Huo Luan. In Huo Luan, a large pulse suggests the condition is treatable, whereas a fine and faint pulse indicates it is untreatable. In Huo Luan with vomiting and purging, if the pulse is faint and slow, breath is weak, and there is no desire to speak, the condition is untreatable.
The *Yang Sheng Fang* (Prescriptions for Nurturing Life) states: Consuming honey in the seventh month can cause sudden diarrhea and trigger Huo Luan.
Disorder between Cold and Heat, and irregular diet, cause the Clear and Turbid Qi of the body to interfere with each other and become chaotic within the intestines and stomach, resulting in Huo Luan. When Huo Luan is accompanied by heart and abdominal pain, it is due to Wind-Evil lodging between the Zang and Fu organs, where Cold Qi clashes with True Qi. If it attacks upward to the Heart, or downward to the Abdomen, heart and abdominal pain result.
Disorder between Cold and Heat, and irregular diet, cause the Clear and Turbid Qi of the body to interfere with each other and become chaotic within the intestines and stomach, resulting in Huo Luan. When Huo Luan is accompanied by vomiting, it is because Cold Qi lodges between the Zang and Fu organs. If it attacks upward to the Heart, heart pain occurs; if it attacks downward to the Abdomen, abdominal pain occurs. If heart pain appears first, vomiting occurs first; if abdominal pain appears first, diarrhea occurs first. This specific type of vomiting is caused by Cold entering the Stomach, disrupting Stomach Qi. As Cold Evil becomes prevalent and Grain Qi fails to harmonize, Stomach Qi rebels upward, causing vomiting.