small lunulae or half-moons at fingernails with longitudinal lines of southeast asian, chinese young man

abnormal asian background beaus bed chinese clean clues cut cuticle defect defective disease diseased finding finger fingernail fingernails half halfmoons health healthy isolated lines longitudinal lunula lunulae male man marks moon moons nail nails normal pit pits pitting plate problem psoriasis ridges rough sign small southeast spots surface symptom uneven unhealthy vertical white young