Teachers contribute their experience on the most relevant scar on our body, which is full of singularities unknown to most people. The article answers very specific questions such as:

• What is the reason that the closure of the navel, except for a tiny percentage, never gives problems again? Does the navel heal like any other wound or does it have something that differentiates it?
• What happened to navels before the development of medicine? Were they always like this?
• Are all people born with the navel at the same height of the body?

All these questions are answered and discussed in an interesting article that shows that our navel is “A sensational, comfortable hermetic seal that defends itself in any terrain and time in history, very resistant to the inclemencies of life, and versatile like few others in its segment, allowing it to once again be an adult entry route if a doctor that's how he considers it"

Full article and source of information: It's time to talk about the navel: how it is so well closed and other curiosities (elconfidencial.com)