what cause nasolabial folds ?

[ectomorpher]

pls help

 

[NZb6Air]

The action of smiling unless you mean the permanent ugly then it's midfacial soft tissues sag

 

[haymaker283]

pls help

it can be a number of different thing.
But the best case scenario is that the nasolabial folds are caused high body fat + a deep canine fossa, at least according to @Allornothing