TY - CHAP M1 - Book, Section TI - Pediculosis Pubis A1 - Dooley-Hash, Suzanne A1 - Herrman, Nicholas W.C. A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason Y1 - 2021 N1 - T2 - The Atlas of Emergency Medicine, 5e AB - Pediculosis pubis is caused by the crab louse, Pthirus pubis. The lice are 0.8 to 1.2 mm long and difficult to see. The egg form, the nit, adheres to hair and clothing. Transmission occurs both by sexual contact and less frequently by fomites, such as clothing and towels. Pruritis due to hypersensitivity is typically the primary clinical manifestation. Small blue macules (maculae ceruleae) may also develop secondary to louse anticoagulant saliva injection during feeding. Patients may also notice small blood stains on the undergarments secondary to bleeding from louse bites. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/10/05 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181041442 ER -