Diapers are primarily worn by children who are not yet potty trained or suffer from bedwetting. However, they can also be used by adults who suffer from incontinence or in certain circumstances where access to a toilet is unavailable. These can include the elderly, those with a physical or mental disability, and people working in extreme conditions such as astronauts. Diapers are usually worn out of necessity rather than choice, although there are exceptions; people such as infantilists and diaper fetishists wear diapers recreationally for comfort, emotional fulfillment, or sexual gratification.

In the 19th century, the modern diaper began to take shape and children in Europe and North America were being diapered using cotton material, held in place with a safety pin. Cloth diapers were first mass produced in 1887 by Maria Allen in the United States.

Adult Diaper