Folded toe nails, also known as pincer toe nails, are a form of toe nail abnormality that may impact individuals of any age and sexes. This problem is usually described as the appearance of multiple crosswise folds or folds on top the toenail. https://articlebiz.com/article/1052041687-what-are-plicatured-toe-nails-and-what-can-be-done-about-them