Some children have trouble staying dry at night. Others have trouble making it to the bathroom during the daytime. But many children have a little trouble with both day and night issues.

Source: youtube.com/watch?v=O5pBkSxlvrw&feature=youtu.be

https://www.youtube.com/watch?v=O5pBkSxlvrw&feature=youtu.be

A wealth of information on child health issues

Source: aboutkidshealth.ca

http://www.aboutkidshealth.ca/En/HealthAZ/DevelopmentalStages/Preschoolers/Pages/default.aspx