Beau's strains: Deep grooves over the nail's width show the nails have slowed or stopped escalating. Accidents, chemotherapy, substantial tension, and fever may cause Beau's strains. Spoon nails are generally related to anemia, or an iron deficiency. For those who have this problem, the nail will look concave either horizontally https://andreenqr25680.wikijm.com/1570818/5_essential_elements_for_wax