Nail Shape Has Changed. Normal, healthy nails appear smooth and have consistent coloring. A change in color, texture, or shape can be harmless, but it can also be a sign of disease.
Thinking of changing up your nail shape but don't know which direction to go? Both nails that show noticeable difference in form/shape are the nails I'd say with prolonged use, nail glue changes nail forms. Have you noticed a change to any of your nails lately?
But have you ever thought about changing your nail shape?
They're often not visible on children's.
As you age, you may develop vertical ridges, or your nails may be a bit more brittle. Unlike an oval nail, which has only slightly tapered sides, this nail shape is more extreme. This nail shape starts its journey as a square, only for the tip to be cut out in an inverted half-moon shape.