Matching Pairs Nail Disorders & DiseasesOnline version Match the nail disorder with its' cause. by Rosalind Carter 1 Splinter hemorrhage 2 Discolored nails 3 Koilonychia 4 Eggshell nails 5 Blue fingernails 6 Leukonychia spots 7 Ridges 8 Plicatured nail 9 Beau’s lines 10 Bruised nail beds 11 Onychophagy 12 Hangnails 13 Onychorrhexis 14 Melanonychia Injury to the matrix, excessive use of cuticle removers, harsh chemicals, aggressive filing or heredity. Small injury to the nail bed. May be just surface staining, a systemic disorder or poor blood circulation. Iron deficiency, anemia, or liver condition. Major injury or illness that has traumatized the body, such as pneumonia, adverse drug reaction, surgery, heart failure, massive injury, or long lasting high fever. Dry skin and small cuts. Uneven growth of the nails, normal aging. Increased pigment cells usually within the matrix. Injury to the matrix, but it may be inherited. Minor injury to the nail matrix. Physical trauma or injury to the nail bed. Improper diet, hereditary factors, internal disease, or medication. Results of a habit of chewing nail or the hardened, damaged skin surrounding the nail. A lack of circulating oxygen in the red blood cells.