The role of iodophor disinfectant swabs includes disinfection and compression hemostasis. 1. Disinfection: povidone-iodine disinfectant swabs are generally used for skin disinfection of small wounds, such as skin abrasions or skin contusions for disinfection, the length of the wound within 3cm is preferred, in addition to alcohol and iodine and other disinfectants, povidone-iodine irritation is small, can be used for damage to the mucous membranes or mucous membrane disinfection of the surgery, such as oral surgery disinfection, but also can be used for surgical disinfection of perineal region. 2. Pressure hemostasis: povidone-iodine disinfectant swabs can compress the wound or ruptured small blood vessels while disinfecting, thus playing the role of hemostasis. In addition, when using povidone-iodine swabs to disinfect, you need to know whether the patient has a history of iodine allergy. People who are allergic to iodine ions are absolute contraindications to the use of povidone-iodine disinfectant swabs, which can cause severe allergic reactions, and it is also inadvisable to use povidone-iodine swabs to disinfect wounds when the wound area is too large.