Frequent bathroom visits by a toddler could be caused for several reasons - here's a few possibilities: Do they eat and drink a lot? Is their stool well formed or not - that might be an indicator of a diet or health issue? Are they on any medications? What kind of foods and drinks do they have - some can an effect on frequency of needing to go. Have they recently potty trained and maybe are finding it exciting to go to the big kid bathroom and forcing out a little tinkle or poo?