Diagnosis depends on the discovery of a live nymphal or adult louse by a healthcare professional.[31]Mumcuoglu KY, Friger M, Ioffe-Uspensky I, et al. Louse comb versus direct visual examination for the diagnosis of head louse infestations. Ped Derm. 2001 Jan-Feb;18(1):9-12.
http://www.ncbi.nlm.nih.gov/pubmed/11207962?tool=bestpractice.com
[32]Burgess I. Detection combing. Nurs Times. 2002 Nov 12-18;98(46):57.
http://www.ncbi.nlm.nih.gov/pubmed/12478939?tool=bestpractice.com