Iodophor is not iodine, but it is also a disinfectant containing iodine. Iodoform is an unstable substance formed by combining iodine with a surface active substance, in which the molecular groups are not connected by chemical bonds, so iodoform is a complex. Iodophor is a widely used clinical disinfectant for the disinfection of skin, mucous membranes and wounds. Iodophor is penetrating and can pass through the protein shell of viruses or the cell wall of microorganisms, attacking them internally and eventually causing the death of the virus or microorganism through a series of complex chemical reactions to achieve disinfection. Compared with iodine and alcohol, the disinfection effect of iodophor is more obvious and causes less pain to patients. Iodophor is less irritating to the skin, faster and more effective in killing toxins, and its toxic side effects are fewer and easier to apply, so iodophor has basically replaced iodine and alcohol and is widely used in the medical field.