Folded toe nails, also known as pincer toe nails, are a type of toe nail abnormality that may impact individuals of all ages and sexes. This problem is usually described as the presence of several transverse folds or indentations on the surface of the toenail. https://articlebiz.com/article/1052041687-what-are-plicatured-toe-nails-and-what-can-be-done-about-them