Our 3-year-old son noticed his mother's scar from the cesarean section and wondered what it was. We didn't really give him an answer but diverted his attention instead. Now we're talking about how should handle that question.
On one hand, we don't want to tell him exactly what it is because we don't want him to think all babies are born that way (even though both our kids were). On the other hand, it's a reasonably natural thing - but he's too young to understand it.
When's the right time to explain this? I figure there'll be a point where we feel he's mentally ready to grasp the idea.
What answers can we give until then? We need to provide something when he asks because we don't want to avoid the topic as if it were a taboo.