Umbilical hernia

Claire • Proud mummy to baby Girl ❤️
Hi everyone took my baby to the doctors today as she's had a cough. Everything is fine luckily but while we were there I mentioned her belly button and is it normal that it's still so stuck out (5 weeks old) the doctor said it was a hernia and would prob correct itself and said its very common. He wasn't concerned at all. But has anyone else experienced this ? When does it go normal? Thanks