According to the search results, it is not possible for a tampon to get lost inside the body. The vagina has a dead end at the top called the cervix, which is a barrier between the vagina and the uterus. Nothing can get above the cervix unless its liquid or microscopic in size. However, it is possible for the tampon string to sneak up inside the body, making it difficult to remove the tampon. If you suspect a lost tampon, it is important to take care of it as quickly as possible. A long lost tampon will begin to make itself known through a strong odor that is clearly not normal. If that starts to happen, its time to dig around, find it and pull it out or get to your doctor for some help right away.

It is important to note that tampon fiber loss can happen when a tampon sheds inside the vaginal canal, leaving behind small pieces of filament. Although the vagina is a self-cleaning organ, its not able to flush out pieces of tampon left inside. These can end up near the cervix and have been known to cause pathogen colonization and vaginal infections like thrush and BV. If you have tried to remove a tampon but failed, you should consult a health professional as soon as possible.