Hook Nail Watchlist (log in to enable) Retrieved 2021-01-18 Source Wikipedia Trials — Genes KRT6A, CTSC, PLEC, SLURP1, GJB6, TP63, IKBKG, ADAM17, LORICRIN, INSR, KRT17, KRT16, KRT14, KRT6B, KRT5, ZSWIM6, NAT9 Drugs — Interested in hearing about new therapies? Registered! Hook nail is a bowing of the nail bed due to a lack of support from the short bony phalanx (fingertip).:660 See also Half and half nails List of cutaneous conditions