Teen Wants to wear diapers

[Person100]

Our DD is about to turn 15 she is in HS, and we just found out she has secretly started wearing diapers and peeing in them on purpose. We found the used, wet diapers in a trash can in her closet. No clue how she got them or why she would want to use them. She has been potty trained since age 4 and doesn’t have any medical problems that we know of. What do we do!? This does not seem normal!

does she works? Maybe her boss made her?

Almost certainly an AB: https://en.wikipedia.org/wiki/Paraphilic_infantilism

Has she had some trauma in childhood to make her want to regress? I would get her seen by health care professional and psych asap. This is not normal and someone will come alone who is a Pado-file who will take advantage of her. This is not normal behaviour at all. Needs inveatigation ASAP.