In the latest column by UTMB’s Dr. Victor S. Sierpina: Many medical diagnoses can be made from studying the nails. Anemic patients have a spoon shape to their pale, brittle nails. Patients with psoriasis have nails that peel back on the leading edges and look like they have been hammered with an ice pick. Patients with chronic lung disease have “clubbed” nails, which from the side, have a convex curve reminding one of a parrot’s beak. Liver, thyroid, rheumatic, and other diseases can be detected by a careful exam of the nails. Check out images on Google if you want to scratch up more info on this.