Hepatitis is transmitted through: 1, fecal-oral route: contact with pathogens containing the patient’s virus, such as hepatitis A, hepatitis E, through food, not washing hands and other poor hygiene habits; 2, blood transmission: such as hepatitis B, hepatitis C, through blood-borne transmission, that is, sharing unclean needles, toothbrushes, or blood transfusion through informal channels, or blood products containing the virus; 3, mother-to-child transmission: that is, transmission from mother to child; 4, sexual transmission; in addition, hepatitis can also be caused by genetic factors or careless use of drugs or individual differences.