Although it’s extremely rare, Toxic Shock Syndrome (TSS) is a potentially fatal infection, caused by bacteria that can release dangerous toxins into the bloodstream. If caught and treated early, it can be cured quickly. However, TSS is not directly linked to tampon use. Only about half of TSS infections are related to menstruation, and it can also occur during menstruations when tampons are not used. In any case, always read the instructions for use and follow the advice regarding the choice of the right absorption level of the tampon and its maximal wear time. If you would like to know more, see here.