Is this girl's mouth harelip?

Definitely not. The so-called "cleft lip" in folk medicine is called "cleft lip and palate". From the appearance, it is mainly "cleft lip", that is, it splits vertically from the middle of a person, and the upper lip is divided into three petals like a rabbit's mouth, so it is called "cleft lip". This girl's upper lip is not cracked, which is normal, so it is not a rabbit's lip.