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