| A | B |
| onychocryposis | ingrown nails |
| onychia | inflammation of the matrix with pus and shedding of the nail |
| onychoptosis | periodic shedding of one or more nail |
| onycophosis | growth of horny ephithelium in the nail bed |
| onycholysis | loosening of the nail without shedding |
| onychophagy | bitten nails |
| onychaptrophia | atrophy or wasting away of the nail; caused by injury or disease |
| onychorrhexis | abnormal brittleness with striation (lines) of the nail plate |
| onychauxis (hypertrophy) | overgrowth in thickness of the nail; cuased by local imbalance |
| onychogryposis | thickening and increased curvature of the nail |