Answer to your ?: In humans, the navel scar can appear as a depression ("innie) or as a protrusion ("outie"). About 90% of humans have innies. An "outie" navel is caused by the extra scar tissue left from the umbilical cord or from umbilical hernias. Umbilical hernias happen when the abdominal wall muscles don't close completely. This is not a concern & they eventually close on their own by age 3-4 yrs old.
Answered 1/31/2015
4k views
Innie vs. Outie: If the belly button protrudes it's an outit, if it's sunken it's an innie
Answered 8/18/2014
3.8k views
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A doctor has provided 1 answer
A doctor has provided 1 answer
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