What It Really Means If Your Fingernails Grow Fast

7. Watch for Other Signs

While fast-growing nails are generally a good thing, if they are accompanied by other changes—such as discoloration, brittleness, or ridges—it may be a sign of an underlying issue. For example, nail changes can sometimes be cconnected to thyroid disorders or other hormonal imbalances. If you’re unsure, it’s always a good idea to meet a healthcare professional.