Medically reviewed by Casey Gallagher, MD Onycholysis happens when your fingernail or toenail separates from its nail bed.

separation of part of your nail from the nail bed spots on your nail that are white or transparent in color ... skin of the nail bed is shorter or more uneven. DNB can cause your nail to ...

Whether you love following the latest nail ... uneven nail surface, says Faranak Kamangar, MD, a dermatologist, psoriasis expert, and founder of PSOTelehealth. "Brittle nails can split at the ...