One of the symptoms of malaria infection is that Plasmodium can be found in blood, bone marrow or sputum smears. Blood marrow or sputum smear to find Plasmodium is a method to check the disease. In the epidemic period of such disease, Plasmodium is more acute, with high fever and chills, coma and convulsions. Infants and children in the epidemic area suddenly high fever, chills, coma, for the health of the body a lot of impact, should be timely examination and treatment is better, to prevent the occurrence of other internal organs of the disease. According to traditional Chinese medicine, malaria is mainly caused by the “malarial evil”. However, the onset of malaria is related to the decrease of the ability to resist evil, and the triggering factors are related to external wind and cold, summer humidity, and diet and fatigue, among which summer humidity is the most frequent trigger. In summer and autumn, when summer and humidity are in season, it is the time when mosquitoes and malaria are rampant, if the human body is sucked by malaria mosquitoes, then malaria invasion causes disease. If the body is stung by malaria mosquitoes, the malaria evil will invade and cause the disease. If the spleen and stomach are damaged by diet, the phlegm and dampness will be generated inside; or if the living is not appropriate and the labor is too much, the vital energy will be depleted and the Ying and Wei will be empty. Malaria always belongs to Shaoyang, so it has been said that “malaria is not far from Shaoyang”. After the infection, the malaria attack occurs when the evil is in the half of the table and the half of the camp and the guard. When the attack occurs, the evil enters and fights with the Ying-Yin, the Wei-Yang cannot reach outside for a while, so the pores are contracted, the skin is corned and vicious cold; afterwards, the evil comes out and fights with the Wei-Yang, the heat prevails on the muscle surface, so it turns into high fever again; when the positive wins the evil, the malaria evil hides and does not fight with the Ying-Yang, so the sweat and heat recedes and the symptoms are relieved. As for the length of the resting time, it is related to the depth of the malaria evil, such as daily or inter-day, the evil is still shallow; if it is three days, the evil is deeper. Due to the difference in the feeling of the evil at the time, or the difference in physical constitution, different pathological changes can be manifested. Generally speaking, the most common clinical condition is the positive malaria with cold, heat and rest. If the Yang deficiency and coldness of the body is strong, or if the cold and dampness are induced, the malaria will be cold malaria with more cold and less heat, or “mare malaria” with cold but no heat. If the Yang body is hot, or if it is induced by heat, the malaria is more hot and less cold. If the malaria is triggered by miasma, it is called miasmatic malaria, which can lead to delirium, spasms and other critical symptoms, and even serious consequences such as internal closure and external decompensation. If the epidemic is so severe that the heat is trapped in the heart and liver, it is a hot malaria; if the dampness obscures the heart and mind, it is a cold malaria. The disease is always caused by malaria, so the nature of the pathology is based on the actual evil. However, if the malarial evil stays for a long time, repeatedly, the Qi and blood are depleted, and there is occasional cold and fever, it may become a labor malaria when there is labor. Or if the malaria is not cured for a long time, the Qi and blood stagnate and the phlegm and turbidity coagulate and block the left hypochondrium to form malaria mother. It is often accompanied by deficiency of qi and blood, manifesting as a deficiency of evil. Malaria is a parasitic disease transmitted by the bite of Anopheles mosquitoes. 1.Infectious source: malaria patients and people with malaria parasites. 2. Transmission: The vector of malaria is Anopheles mosquito, and the main transmission route is through the bite of mosquitoes on the skin. Very few cases can be caused by blood with Plasmodium. The most important vector for malaria transmission is Anopheles sinensis, which is the main vector for the transmission of inter-day malaria in the plains. In mountainous areas, Anopheles minutus is the main vector for malaria transmission. In the hilly areas, Anopheles reevesi is an important vector for the anthropophilic subspecies. In the mountainous areas of Hainan Island, the vector of malaria transmission was found to be Anopheles major. 3.Population susceptibility: the group is generally susceptible to malaria. Although there is a certain degree of immunity after infection, it is not durable. There is no cross-immunity between various types of malaria, and after repeated infection, the symptoms can be lighter or even asymptomatic when re-infected. In general, foreigners from non-endemic areas are often more likely to be infected and have more severe symptoms. 4, epidemic characteristics: malaria disease is mainly prevalent in the tropics and subtropics, followed by temperate zones. This is mainly because the disease is prevalent in the ecological environment and the vector factors are closely related. The epidemic area is the most widespread in inter-day malaria, and falciparum malaria is mainly prevalent in the tropics and is also the most serious. The prevalence of Plasmodium falciparum is mainly in the tropics and is the most serious. In China, except for Yunnan and two provinces, where there are mixed epidemics of Plasmodium vivax and Plasmodium falciparum, Plasmodium vivax is mainly prevalent. The incidence of the disease is more frequent in summer and autumn, but it is not restricted by the season in the tropical extrusion zone.