Relier Pairs Nail DisordersVersion en ligne Match the nail disorder to the correct nail disorder description. par Rosalind Carter 1 onychauxis 2 melanonychia 3 hang nail 4 splinter hemorrhage 5 ridges 6 bruised nail beds Caused by physical trauma or injury to the nail bed that damages capillaries and allows small amounts of blood flow. Perfectly normal in older clients. Condition in which the living skin around the nail plate splits and tears. Darkening of the fingernails or toenails. Condition in which a blood clot forms under the nail plate, causing a dark purplish spot. Treated by trimming or bringing the nails down to size.