夏季天气高温多湿,细菌容易繁殖,加之生食不慎,导致腹泻。腹泻俗称拉稀,是因各种致病微生物造成肠黏膜的分泌增多与吸收障碍,肠蠕动过快,引起排便次数增加,粪便稀薄,含有异常成分者,称腹泻。腹泻分急性和慢性两类。急性腹泻发病急剧,病程在2～3周之内。慢性腹泻指病程在两个月以上或间歇期在2～4周内的复发性腹泻。 Hot and humid summer weather, bacteria easily multiply, coupled with raw food carelessness, leading to diarrhea. Diarrhea commonly known as diarrhea, due to a variety of pathogenic microorganisms caused by increased secretion of intestinal mucosa and absorption disorders, bowel movements too fast, causing increased frequency of defecation, stool thin, with abnormal ingredients, said diarrhea. Diarrhea is divided into acute and chronic categories. Rapid onset of acute diarrhea, duration of 2 to 3 weeks. Chronic diarrhea refers to the recurrence of diarrhea in the course of more than two months or intermittent in 2 to 4 weeks.