Head, body and pubic lice have a tendency to emerge in crowded areas with low levels. Information about pediculosis pubis in the dictionary, synonyms and antonyms. Lice have been parasites of humans for thousands of years and differ according to their habitat on the host. European guideline for the management of pediculosis pubis. Pediculosis pubis, or phthiriasis, is caused by infection with phthirus pubis, the crab louse that, along with the head louse, account for nearly 3 million cases annually in the united states. Mandell, douglas, and bennetts principles and practice of infectious diseases eighth edition, 2015. Pediculosis pubis medical definition merriamwebster. Researchers at the max plank institute for evolutionary anthropology used molecular clock analysis mtdna to date the origins of human lice to approximately 72, 000 years ago in africa. Pubic pediculosis what it is, causes, symptoms and treatments in this article you will get all your doubts about this disease. Lice have infested humans for thousands of years, and pediculosis remains a prevalent disease in affluent suburban schools as well as in innercity populations.
The symptom information on this page attempts to provide a list of some possible signs and symptoms of pediculosis. Efficacy and safety of spinosad and permethrin creme rinses for pediculosis capitis head lice. This louse is mostly found on areas of your body that have hair especially groin or genital areas, abdomen, armpits, eyelashes, eyebrows and chest. The life cycle of this tiny human parasite, which has been found in fossilized form dating back 10,000 years, is explained. However, nits can cling to hairs and be present, although no longer alive, even after successful treatment. The species may also live on other areas with hair, including the eyelashes, causing pediculosis ciliaris. Pediculosis lice, head lice, body lice, pubic lice, cooties. Permethrin 1% in shampoo or lotion is the firstline drug used to treat all kinds of lice. United kingdom national guideline on the management of phthirus pubis infestation. Pediculosis as a human problem dates back to the earliest homo sapiens. Pediculosis capitis and pediculosis corporis are discussed separately. Stough d, shellabarger s, quiring j, gabrielsen aa jr.
Pediculosis is transmitted through direct or indirect means. Lice are tiny bugs that bite into the skin and suck blood to live and grow. Ectoparasitic infections 2015 std treatment guidelines. Pediculosis pubis crabs nits on hair shafts and lice on the skin and hairs are present. The third type of louse is phthirus pubis, also known as crabs. Phthirus pubis, parazitskim insektom zloglasnim po infestaciji ljudskih genitalija. Finding numerous nits within 6 mm of the scalp is highly suggestive of active infestation. Historical clues such as poor body hygiene, lack of access to clean clothing. Although pediculosis in humans may properly refer to lice infestation of any part of the body, the term is sometimes used loosely to refer to pediculosis capitis, the. Pediculosis is an infestation of lice bloodfeeding ectoparasitic insects of the order phthiraptera. Although pediculosis can infest any part of the body but term pediculosis is used for head pediculosis. Pediculosis most commonly occurs on the head, more specifically the scalp, which is typically the hairiest area on a persons body.
Ectoparasites continue to be a common cause of skin disease throughout the world. Pediculosis definition of pediculosis by the free dictionary. The most common areas of infestation are the scalp or genitals. This book is distributed under the terms of the creative commons attribution 4. Pediculosis pubis is the medical term for pubic lice, which are also commonly called crabs. After about one week the larvae hatch, and in about two weeks they develop into mature crab lice. History, physical examination, and a high index of suspicion are necessary to make the correct diagnosis.
While its effects are for the most part mild because the infestation occurs only on the surface on the skin, scalp and clothes, managing the disease has presented a challenge for public health measures because lice are so common and widespread. This signs and symptoms information for pediculosis has been gathered from various sources, may not be fully accurate, and may not be the full list of pediculosis signs or pediculosis symptoms. It is usually transmitted sexually but may be contracted from bedding and clothing. Other articles where pediculosis pubis is discussed. Pediculosis pubis is caused by an ectoparasite, phthirus pubis, also known as the crab louse. Pubic lice pediculosis pubis condition, treatments, and. The bite of the insect is what causes the intense itching that most people experience with a lice infestation. Pubic lice, commonly called crabs, are tiny insects found in your genital area. Pubic lice pthirus pubis maintain a worldwide parasitic population infesting two to over 10 percent of human populations, continuing a presence that has been constant since early evidence 10,000 years ago.
These students deemed antibiotics as a viable treatment for pubic lice infestation. The current recommendations for treatment of pediculosis pubis are listed in table 2. Pediculosis pubis pubic lice bccdc clinical prevention services reproductive health sti decision support tool noncertified practice pediculosis pubis pubic lice december 2014. Complications of pediculosis pubis are virtually unknown, and infestation is more a nuisance than a significant threat to health.
Pediculosis from wikipedia, the free encyclopedia pediculosis pediculus pediculosis is an infestation of lice bloodfeeding ectoparasitic insects of the order phthiraptera. Apr 10, 2020 pediculosis pubis, also called pubic lice or crabs, is an infection caused by crab lice. Pubic lice are not a health hazard and are not responsible for the spread. Full sti screening is recommended, if appropriate, for men and women when they are initially assessed for pubic lice. Pediculosis pubis also called pthirus pubi or pubic lice or crab lice or crabs, is a louse a type of wingless, bloodsucking insect that can live and multiply infest on skin that grows pubic hair. Infestation usually leads to intense itching in the pubic area. Ova vrsta moze takode da zivi na drugim delovima tela sa dlakom, kao sto su trepavice izazivajuci pediculosis ciliaris. Pediculosis pubis also known as phthiriasis pubis, pediculosis corporis, and pediculosis capitis are disorders caused by infestation by one of three varieties of lice that specifically infest humans. Head, body and pubic lice have a tendency to emerge in crowded areas with low levels of personal hygiene. In addition, pubic pediculosis, popularly known as boring, is a contagious disease caused by the parasitic insect phthirus pubis, also called pubic louse.
Although pediculosis in humans may properly refer to lice infestation of any part of the body, the term is sometimes used loosely to refer to pediculosis capitis, the infestation. Pediculosis pubis is usually sexually transmitted and can extend beyond the pubic area to involve other areas of the body, including the eyelashes also known. Pediculosis is an ectoparasitic infestation caused by bloodfeeding lice of the order phthiraptera. A more general reaction of fever, headaches, a diffuse rash, fatigue, and myalgias may appear a few weeks or months after the beginning of the parasitism. Pediculosis on the scalp is officially called pediculosis capitis otherwise known as head lice. The crab louse, phthirus pubis, infests the hair of the pubic region, where louse eggs, or nits, are attached to the hairs. Effective pediculicides exist, but head lice in some areas have developed resistance to products with a neurotoxic mode of action. Pediculosis pubis is a disease caused by the pubic louse, pthirus pubis, a parasitic insect. Phthirus pubis is crabshaped, greybrown in colour, and about 2 mm in length.
World heritage encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive. Although pediculosis can affect people of all ages, head lice are often found in schoolaged children. Pubic lice are tiny wingless insects that infect the pubic hair area and lay eggs there. Before discussing current student attitudes and health behaviors, a general history of pubic louse occurrence and biology will facilitate evaluating the scope of student understanding there is archeological and historical evidence of lice infestation in the human population for as long as 10,000 years, though there is much less occurrence information for. Sep 01, 2015 pediculosis pubis is a disease caused by the pubic louse, pthirus pubis, a parasitic insect notorious for infesting human pubic hair. Stds atlas of pediculosis pubis free medical atlas. Aug 16, 2019 pediculosis has a worldwide distribution and is endemic in both developing and developed countries. Pthirus pubis louse is less mobile and has a large craw to attach on the rough hairs on your body. Unlike head and pubic lice, body lice do not live on the skin but rather live. Pyrethrins with piperonyl butoxide applied to the affected area and washed off after 10 minutes. Pediculosis humanus similar in appearance and development to head louse natural habitat clothing close to the skin visit skin to feed seams are a favoured site for oviposition eggs cemented to clothing fibres do not survive high temprature washing and ironing of cloths temperature change in environment.
The fda similarly warns against use in patients with a history of uncontrolled seizure. The classical clinical features and diagnostic tips are given together. Pubic lice pediculosis pubis, also known as crab lice or crabs, is a louse a type of wingless, bloodsucking insect that can live and multiply infest on skin that grows pubic hair. They are a different type of louse from head lice and body lice. Pediculosis, or infestation by pediculus arthropods commonly known as lice, has been a public health problem for all of human history.
Pediculosis corporis is a bodylice infestation and pediculosis pubis or crabs is a pubic lice infestation. The crawling stages of this insect feed on human blood, which can result in severe itching. Eyebrows, eyelashes, chest hair, or underarm hair may also be infested. The first is pediculus humanis capitis, also known as the head louse and the second is pediculus humanis corporis, more commmonly known as the body louse. Pediculosis has a worldwide distribution and is endemic in both developing and developed countries. The condition can occur in almost any species of warmblooded animal i. Pubic lice crabs diagnosis and treatment mayo clinic. Pediculosis and pthiriasis lice infestation clinical. Guidelines european guideline for the management of pediculosis pubis c. Please tell us where you read or heard it including the quote, if possible. Pubic lice are caused by the parasitic insect phthirus pubis. It is estimated that pediculus capitis head lice affects six to 12 million people in the united states. Infestation is a marker of std risk, and patients should be screened for other stds. The hallmark of pediculosis corporis is pruritus and pyoderma of clothing covered areas.
The most common way to acquire pubic lice is through sexual intercourse. Lice are obligate, parasitic insects that have no freeliving stage in their life cycle. Pediculosis pubis is usually transmitted by sexual contact 849. Pediculosis definition of pediculosis by medical dictionary. The crab louse or pubic louse pthirus pubis is an insect that is an obligate ectoparasite of. The prevalence of pediculosis capitis is usually higher in girls and women and varies from 0. Pubic lice most commonly affect the pubic hair, but other hairbearing areas, such as the armpits and eyelashes, eyebrows, or scalp, may also be affected. Proper usage and audio pronunciation of the word pediculosis pubis. Finally, a common infestation is pediculosis pubis.
Pediculosis pubis is diagnosed by the identification of live lice or viable nits. The parasites are 1 to 3 mm long and have three pairs of legs. You or your doctor can usually confirm a pubic lice infestation through a visual examination of your pubic area. Pediculosis capitis, definition, pubis, carporis, what. Tiplica4 1department of paediatric dermatology, colentina clinical hospital, carol davila university of medicine and pharmacy, bucharest. Pediculosis pubis red book 2018 red book online aap point. Oct 03, 2016 pediculosis most commonly occurs on the head, more specifically the scalp, which is typically the hairiest area on a persons body. Aug 16, 2019 british association for sexual health and hiv. Just like head lice, pubic lice are very small insects that live by attaching themselves to human hair and feeding off human blood. They also indicated negative attitudes toward the use of pesticide cremes, which.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Infestations of crab lice are known as pediculosis pubis or phthiriasis pubis which. Pediculosis project gutenberg selfpublishing ebooks. An allergic reaction to the saliva that lice head lice are spread mainly by direct headtohead contact an. Pediculosis pubis je bolest uzrokovana stidnim vasima lat.
The female lays eggs smaller than a pinhead on the hair shaft, near to the body. These lice can also be found in armpit hair, eyebrows, moustache, beard, around the anus, and eyelashes in children. Pubic pediculosis an overview sciencedirect topics. Since 1996, there have not been any englishlanguage studies documenting significant treatment failure in the management of pediculosis pubis. Pediculosis capitis symptoms, diagnosis and treatment.
Despite the similarities between body lice and head lice, body lice but not head lice transmit typhus, trench fever, and relapsing fever. Pediculosis is a complex of three different human infestations with two species of bloodsucking lice of the insect order phthiraptera, suborder anoplura. Head lice are usually located on the scalp, crab lice in the pubic area and body lice along seams of clothing. The diagnosis of pediculosis is best made by finding a live nymph or adult louse on the scalp or in the hair of a person.
Elston, in tropical dermatology second edition, 2017. Pediculosis capitis is a common condition caused by infestation of the hair and scalp by pediculus humanus capitis the head louse, one of three distinct varieties of lice specifically parasitic for humans. Finding nits only more than 6 mm from the scalp is only indicative of previous infestation. Pediculosis pubis gives an overview of the aetiology, epidemiology and transmission, clinical features, diagnosis, and finally, management of infestations with the pubic louse, pthirus pubis. Pediculosis lice, head lice, body lice, pubic lice. Pediculosis capitis definition of pediculosis capitis by.
This book is distributed under the terms of the creative commons. The empty nit eggshells are tightly attached to the hair. Pubic lice tend to remain on their hosts throughout their lives unless dislodged, taken off with clothing, or controlled. Body lice and head lice harbor the same endosymbiotic. Pediculosis humanis lice, capitis, pubis statpearls ncbi. As annoying as pediculosis can be, it is treatable. The most common symptom of the condition is itching in the pubic area, though an infestation can also cause a bluishgray tint to the skin. Feb 03, 2020 pediculosis is a lice infestation of the hairy areas on the body. Outbreaks in the 1970s have been recorded, but incomplete records preclude description of a definitive population cycle. Head lice infestations are associated with little morbidity but cause strain and distress to parents, caregivers, and teachers.
Post the definition of pediculosis pubis to facebook share the definition of pediculosis pubis on twitter. From these studies the complete life history was obtained. Pediculosis is an infestation of the hairy parts of the body or clothing with the eggs, larvae or adults of lice. Pruritus is the most common symptom of infestation. Pediculosis is a lice infestation of the hairy areas on the body. Pediculosis pubis also known as crabs and pubic lice is a disease caused by the pubic louse, pthirus pubis, a parasitic insect notorious for infesting human pubic hair. Pediculosis corporis article about pediculosis corporis by.
772 820 293 583 1459 416 506 825 1528 528 749 184 1225 682 283 448 252 110 729 583 1182 840 328 1214 446 376 289 690 819 191 694 864 860