What does it mean to dream about fingernails?
Fingernails often point to grooming, defense, and small details of how you present yourself, or to worry over appearance and control.
Four ways to read it
Each reading below comes from a named tradition and a cited source, so you can see where it came from and decide what fits your dream.
Freud
Freud would read the nails as the body's small armament and as a focus of grooming and anxiety. Breaking or losing them can mark a fear of weakness or of being unable to protect oneself.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung would see attention to the surface of the self, the way one keeps or neglects the outward person. Decayed nails may mark a sense of something untended in the inner life.
Jungian concept (our summary).Modern
Continuity ties nails to waking concerns about appearance, hygiene, and being judged on small things. Crumbling nails often follow days of feeling that one is losing one's grip.
Continuity hypothesis (our summary).Mythological
Nails and hair were thought to hold a part of the person, kept or buried with care in many folk customs. Long claws marked the beast or the witch, the line between the tended human and the wild.
Rosmerta Publishing editorial synthesis (after Frazer; Brewer).