Improper use of ethylene oxide can cause damage to human skin, liver and kidneys, respiratory tract, nervous system, etc. It should be used by professionals. Ethylene oxide is a bactericidal disinfectant, daily used for clothing, surgical instruments, biological products, food and other gasification fumigation disinfection. The substance can be absorbed into the body through the skin, burning the skin and causing blisters and pain. After entering the human body, it can damage the function of liver and kidney, and in serious cases, it can cause liver and kidney failure or even cancer. Inhalation through the respiratory tract, can corrode the respiratory tract, leading to respiratory difficulties, pulmonary edema. Ethylene oxide poisoning involving the nervous system can lead to headache, nausea and vomiting. It should be noted that ethylene oxide is a flammable and explosive product, which can lead to explosion when it is improperly stored or used, so it is necessary to pay attention to safety when applying it, and pay attention to the airtightness of the containers when disinfecting; ethylene oxide should be carefully selected when disinfecting food, and the substance can destroy vitamin B2, folic acid and amino acid content in the food, which will make the nutrient content decrease. Ethylene oxide should not be applied to streptomycin disinfection, which can lead to a decrease in efficacy. Application of ethylene oxide sterilization should be carried out by professionals to avoid adverse consequences.