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What is head lice? 


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Head lice, scientifically known as Pediculus humanus capitis, are tiny parasitic insects that infest the human scalp by attaching to the hair and feeding on blood from the scalp. They are common among school-aged children but can affect anyone regardless of cleanliness or socioeconomic status. Head lice are primarily spread through close head-to-head contact and are more prevalent in girls compared to boys. These insects lay eggs called nits, which are attached to the hair shaft close to the scalp, and can cause itching, especially behind the ears and at the back of the neck. Treatment typically involves using head lice medicine and combing out nits and eggs after each treatment. Various pharmaceutical preparations, including shampoos, lotions, and hair tonics, can be used as pediculicides to combat head lice infestations.

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Head lice (Pediculus humanus capitis) are parasitic insects that infest the human scalp, causing itching and skin irritation. They are common among school-aged children and spread through direct contact.
Journal ArticleDOI
26 Sep 2022-Pediatrics
3 Citations
Head lice infestation causes anxiety among caregivers of school-aged children. The paper discusses updated diagnosis, treatment protocols, and new medications approved since 2015.
Head lice are tiny bugs that attach to hair, feeding on blood from the scalp. They lay eggs called nits, which can be treated with proper medication and combing methods.
Head lice are parasitic insects that infest the human head, feeding on blood from the scalp. They commonly affect children aged 4 to 11 years and require regular examination for management.
Open accessProceedings ArticleDOI
29 Jul 2022
Head lice are obligate ectoparasites that infest the scalp, surviving by feeding on blood. They are the cause of pediculosis capitis, an infection that affects the human head.

Related Questions

What are the most effective and safe methods for treating head lice in children?4 answersThe most effective and safe methods for treating head lice in children include topical permethrin, pyrethrin with piperonyl butoxide, malathion, benzyl alcohol, dimethicone, spinosad, and ivermectin. Additionally, wet combing can be considered for children under 2 years old, while oral ivermectin and trimethoprim/sulfamethoxazole are reserved for cases where topical treatments fail. A newly developed squalane and dimethicone-based formula has shown 100% efficacy against head lice and eggs, with good skin tolerance in children with atopic skin, presenting a safe alternative therapy. Furthermore, ongoing evaluation of pediculicides, medical devices, and louse-removal remedies is crucial to combat resistance and ensure efficacy in treating head lice infestations.
What are the most effective home remedies for treating head lice?4 answersHome remedies like mayonnaise, essential oils, and olive oil have not been proven safe or effective for treating head lice and may pose risks of severe adverse events. Instead, it is recommended to use approved head lice medicines for effective treatment. Dry shampoo compositions containing diatomaceous earth and starch have been proposed for deterring and killing head lice infestations. Additionally, a newly developed squalane and dimethicone-based pediculicidal formula has shown high efficacy in killing head lice and eggs, making it a safe alternative therapy for head lice treatment. A novel mixture of semi-crystalline polymers and plant extracts has also been found to be significantly more effective than traditional 1% Permethrin lotion, offering a safe and efficient alternative treatment for head lice infestations.
What is a concussion?5 answersA concussion is a temporary change in brain functioning that can occur due to a sudden force applied to the brain from outside. It is a type of traumatic brain injury that can result in a disruption of the brain's structure or impairment of its function. Concussions can be caused by various factors such as sports injuries, falls, accidents, or acts of violence. The symptoms of a concussion can include temporary disruption of thinking skills, alteration of awareness, and impairment of physical, cognitive, emotional, and sleep functions. Concussions are diagnosed clinically and not based on laboratory tests or scans. It is important for sports medicine professionals to stay informed about the advances in understanding concussions and to focus on both prevention and management of concussed athletes.
What is a parasite?3 answersA parasite is an organism that lives in or on another organism, obtaining its essential nutrients and causing harm to its host. Parasites can be unicellular (protozoa) or multicellular (helminths and arthropods). They have adapted to humans over millions of years and can cause a wide variety of diseases. Parasites can exist as free-living forms in the environment or require a host for their reproduction and survival. They can be transmitted through various means such as vectors, food, or the environment. Diagnosis of parasitic infections often relies on the detection of parasite stages in biologic specimens. Treatment for parasitic infections is usually medical, although surgical interventions may be necessary in some cases. Parasitic diseases are a global health concern, and research in the field of parasitology continues to expand.
Does Head?5 answersHead injury was not associated with faster disease progression in amyotrophic lateral sclerosis (ALS) and did not result in a specific neuropathologic phenotype. Tranexamic acid (TA) did not reduce intraoperative blood loss or need for transfusions in head and neck cancer surgery. Vestibular migraine (VM) patients did not show a significant change in vestibulo-ocular reflex (VOR) gain after a headshake maneuver. Salvage surgery leads to a substantial improvement in outcomes in head and neck cancers and should be the de facto standard of care for eligible patients. The utility model of a head with damping performance provides effective pressure surge restraint and has a long service life.
What is the function of the chicken's head?5 answersThe function of the chicken's head is to compensate for movements of the body and background, search, fixate, and track objects visually. It is also involved in head stabilization, which helps to keep the direction of gaze constant or fixed. Head stabilization allows birds to efficiently detect if objects are moving in their environment and provides information about the depth and distance of objects. Additionally, the chicken's head is used in the process of cutting off the chick's head in a slaughterhouse. Overall, the chicken's head plays a crucial role in visual perception, movement coordination, and survival.

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