There is a risk of getting infectious diseases from washing clothes in public washing machines. Therefore, try to avoid using public washing machines or sterilize them before use. Public laundry refers to multiple people sharing the same washing machine. If the washing machine is not cleaned for a long period of time, it may lead to a variety of bacteria, viruses and other pathogenic microorganisms harboring in the washing machine and replicating and reproducing, and at the same time, because of the washing machine is in a humid and dark environment for a long period of time, so it is very suitable for the growth of microorganisms. Public washing machine if attention to daily cleaning, generally does not spread microbial pathogens, but if long-term attention to cleaning, washing clothes have the risk of spreading infectious diseases. It is recommended that washing machines be disinfected with detergents such as 84 disinfectant before washing clothes to prevent the spread of infectious diseases.