BDSM - Diapers are sometimes used during prolonged bondage sessions, not only as a method to control and shame the submissive partner, but also to allow longer periods of bondage. In Total Power Exchange, diapers are sometimes utilized for the dependency they represent of the wearer on their master to be checked and changed.
Adult Babies and Diaper Girls
Adult diaper -
An adult diaper is a diaper made to be worn by a person with a body larger than that of an infant or toddler. Diapers become necessary for adults who suffer from various conditions, such as incontinence, mobility impairment, or dementia. Adult diapers are made in various forms, including those resembling traditional child diapers, underpants, and pads resembling sanitary napkins (known as incontinence pads).
In the medical community, professionals are trained to use alternative terms such as "briefs" rather than "diapers" for the sake of dignity, as the term "diapers" is associated with children and therefore may have a negative connotation. In practice, though, most health care workers are accustomed to calling them diapers, especially those that resemble childrens' diapers.