When do children commonly recognize a wet or soiled diaper?

Children typically recognize a wet or soiled diaper around the age of 12 months. At this developmental stage, infants are becoming more aware of their bodily sensations and are starting to understand the distinctions of comfort versus discomfort. They may show signs of discomfort when their diaper is wet or soiled and may even acknowledge it through facial expressions, crying, or by trying to get attention from caregivers.

This level of awareness is essential as it lays the groundwork for potty training in the future. By recognizing these sensations, children can begin to communicate their needs more effectively. It's important to note that while some may begin to show this recognition a little earlier or later, the 12-month mark is a commonly observed milestone for many children.