Diaper dream meaning is explained below using 4 different sources. Each interpretation is shown with its source.

Interpretation 1 — Dr. Mıchael Lennox

The purpose of the diaper ultimately points to the freedom it brings. By virtue of the diaper’s presence, the wearer is able to be unconcerned with when and where the release of toxins and waste occurs. Since there is often shame connected with the acts of defecation and urination, the diaper can be thought of as a container for your shame. Are you holding on to things that make you feel bad about yourself?
Source: Complete Dictionary of Dreams Author: Dr. Mıchael Lennox

Interpretation 2 — Margaret Hamilton

A protection for the immature who are in need of discipline in self-control
Source: Dream Dictionary Unlimited Author: Margaret Hamilton

Interpretation 3 — Tyler Wolfe

A dirty diaper can be symbolic of filth or sin, Zeph. 1:17
Source: Christian Dream Symbols Author: Tyler Wolfe

Interpretation 4 — Ibn Seerin

(See Swaddle)
Source: Islamic Dream Interpretation Author: Ibn Seerin