E. coli, also known as Escherichia coli, is a normal flora of the human body. Under normal circumstances, E. coli is not harmful to the human body and does not cause disease. However, in some special cases, a small number of special E. coli can cause disease. The medical community has divided the pathogenic E. coli into six categories, namely pathogenic E. coli, enteroinvasive E. coli, enterohemorrhagic E. coli, intestinal toxin-producing E. coli, intestinal aggregating E. coli, and other E. coli. Once infected with these disease-causing E. coli, intestinal diseases can occur. In order to prevent infection with pathogenic E. coli, it is recommended to pay attention to hygiene and to wash hands before and after meals. You should also pay attention to hygiene and abdominal warmth in your diet, and if you are infected with pathogenic E. coli, you need to go to the hospital for treatment in time.