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