Onycholysis (drug-induced). This word means separation (-lysis) of nails (onycho-) from nail beds. There are many causes for such a development. The commonest are mechanical. Nails worn long are frequently lifted by being snagged. Excessive soaping and soaking in heavy housework promote separation. The illustration here is of another cause, namely, an idiopathic response by photosensitivity in a patient who had been taking demethylchlortetracycline. Doxycycline also does this.
Color Atlas of Pediatric Dermatology Samuel Weinberg, Neil S. Prose, Leonard Kristal Copyright 2008, 1998, 1990, 1975, by the McGraw-Hill Companies, Inc. All rights reserved.
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