Oxygen triggers bacterial growth, and the more absorbent the tampon, the longer it is left in place and the more toxin-producing bacteria it can harbor.
Women and girls who use tampons should always wash their hands before inserting a tampon and change the tampon every four to six hours.
A rare, but serious, condition called toxic shock syndrome (TSS) can be connected to tampon use.
Girls should use the tampon with the least absorbency necessary to absorb the flow.
The absorbency of a tampon can be determined by how often it needs to be changed.