From bugs, from plates. Original meaning: parasites in human stomach. Hey, there's a bug in your stomach. -"Shuo Wen"

Zhang Gang's Textual Research on the Origin of All Diseases in Traditional Chinese Medicine said: "People suffering from schistosomiasis, now called schistosomiasis, get sick because of taking a bath in the water and schistosomiasis cercaria invades the human body. ..... Schistosomiasis is a disease caused by the invasion of Schistosoma cercariae into human body, so the common symptoms of so-called legal diseases in ancient times, such as heart pain, vomiting blood and so on. It is the external manifestation of tissue necrosis caused by parasitic deposition of adult Schistosoma japonicum and its eggs in liver, portal vein, colon and rectum, and congestion and bleeding caused by Schistosoma japonicum larvae passing through lung tissue. ..... This disease is called, which means heartache, vomiting blood and bleeding. Today it is also called schistosomiasis. This method is also the original meaning of the name. "

Schistosoma japonicum is called "method" or "water method" in ancient literature, and it is mostly infected by skin contact with infected water with Schistosoma japonicum larvae. The Sui Dynasty and others said in "On the Etiology and Stages of Diseases Related to Water": "This is due to the accumulation of water and toxic gas, which gradually makes the abdomen bigger ... This is also called water-related stagnation. After infection, fever, aversion to cold, cough and chest pain can be seen at the initial stage; Long-term manifestations are hypochondriac mass and ascites swelling, and the consequences are more serious.

Schistosoma japonicum, a flat animal parasitic in the host vein. Schistosoma japonicum is distributed in 76 countries and regions in Asia, Africa and Latin America. It is estimated that 500-600 million people are threatened, and the number of patients in 1990 reaches 200 million. There is only Schistosoma japonicum in China, which is what we usually call Schistosoma japonicum. The fact that the eggs of Schistosoma japonicum were seized from the ancient corpse of the Western Han Dynasty in Jiangling, Hubei Province shows that schistosomiasis has existed in China for at least 2 100 years.

Methods refer to things related to superstition, such as cursing and praying for ghosts and gods. For example:

Qi: the evil of swearing);

I wish: curse people with witchcraft;

Guru: superstitious professionals, people who use spells and other witchcraft to arrange good or bad luck for people;

Kill by magic: kill by magic.

The legendary poisonous insect "Gu" cultivated artificially is specially used to harm people. Legend has it that hundreds of insects eat each other on a plate, and the last remaining insect is Dharma. Such as: poisonous insects.

A legendary poisonous insect cultivated artificially. "There are animals in several counties in the south of the Yangtze River. The owner killed them, ate and drank them, and people didn't feel it." -"Geography"

Gugu: Legend has it that artificially cultivated ancient insects; Monster: It is said that a person keeps monsters.

Zheng Qiao's Tongzhi in the Song Dynasty also recorded: "The method of one trick is to put a hundred insects in a dish to make them eat each other, and the one who keeps it is a trick." In the historical records after the Song Dynasty, this theory is often used in all toxic records.

Some legends about "antiquity": Jin Cangu case, Zhuang snake case, Pumi case, Lisu case, Jinshajiang case in Yunnan, Yi case in Sichuan, etc. These cases are all distributed in southern minority areas.

In ancient times, it was commonly known as "grass ghost" in Miao area. According to legend, it is attached to women, harming others and harming themselves. Those so-called witches are called "grass ghosts". After investigation, some Miao scholars believe that almost all Miao people believe in this law, but the weight varies from place to place. They believe that in addition to the above-mentioned emergencies, some intractable chronic diseases such as long-term cough, hemoptysis, dull complexion and emaciation, as well as symptoms such as visceral discomfort, bowel sounds, abdominal distension and loss of appetite are all possessed by this method. It's sudden, so it's good to let the so-called liberators get it back by calling the village. If you are a chronic patient, you should invite a wizard to "drive away the poison".

This daunting method is not the exclusive right of Miao people. Magic techniques were widely spread in ancient Jiangnan area of China. Method originally refers to insects born in utensils, later moths born after food spoilage, and insects born from other objects are also called methods. The ancients thought that this method was mysterious in nature and extremely toxic, so it was also called poison method, which could enter the human body through diet and cause diseases. The patient seems to be confused by ghosts. Most of the ancient poisonous insects mentioned by pre-Qin people refer to mysterious poisonous insects that naturally occur. Long-term superstition of poison law has formed the concept and practice of making laws to harm people. According to scholars' research, during the Warring States Period, some people in the Central Plains used and taught the method of sinning.

There is a legend about methods in ancient times, that is, because ancient science and medicine were underdeveloped, people lacked scientific knowledge to explain human diseases. In the south, there are many kinds of insects and snakes, and most of them are poisonous. The ancients treated diseases by wizards. All kinds of folklore are popular and mysterious.