There is a belief that the shape of the umbilicus is determined by the way the midwife or obstetrician cuts and clamps the umbilical cord, but this is not true.
The shape of this object of desire is explained by the configuration of the abdominal muscles , which varies significantly from one person to another, and the place that the navel occupies in the abdomen. It should not be forgotten that the navel is the result of the scar left by the umbilical cord when piercing a set of muscles known as the white line. This, which goes from the sternum to the pubis, is what appears like a washboard in gymnasts.
