Head lice infestation
(Redirected from Pediculosis capitis)
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Head lice infestation | |
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Synonyms | Pediculosis capitis |
Pronounce | N/A |
Specialty | N/A |
Symptoms | Itching, tickling sensation, irritability |
Complications | Secondary bacterial infection |
Onset | Preschool and school-aged children |
Duration | Weeks to months |
Types | N/A |
Causes | Infestation with Pediculus humanus capitis |
Risks | Close contact, sharing personal items |
Diagnosis | Visual inspection, fine-toothed comb |
Differential diagnosis | Dandruff, seborrheic dermatitis, scabies |
Prevention | Avoiding head-to-head contact, not sharing personal items |
Treatment | Topical insecticides, wet combing |
Medication | Permethrin, ivermectin |
Prognosis | N/A |
Frequency | Common in children |
Deaths | N/A |
Head Lice Infestation (Pediculosis Capitis)
Introduction
Pediculosis capitis, commonly known as head lice infestation, is a condition characterized by the infestation of the scalp by the head louse (Pediculus humanus capitis). This condition predominantly affects children but can occur in people of all ages.
Causes and Transmission
Head lice are transmitted primarily through direct head-to-head contact. They crawl from one person's hair to another's. Indirect transmission via shared personal items like combs, hats, and pillows, although less common, is also possible.
Symptoms
The primary symptoms of head lice infestation include:
- Itching: The most common symptom, caused by an allergic reaction to louse bites.
- Red Bumps: Small red bumps may appear on the scalp, neck, and shoulders.
- Difficulty Sleeping: Increased lice activity at night can disrupt sleep.
First-time vs. Repeat Infestations
- First-time Infestations: It may take up to six weeks for symptoms to appear.
- Repeat Infestations: Symptoms can manifest much more rapidly in subsequent infestations.
Health Impact
In Europe and North America, head lice are not known to spread other diseases. The primary concern is the discomfort and potential for secondary infections caused by scratching.
Diagnosis
Diagnosis involves visual inspection, often aided by a fine-tooth comb. The presence of nits (lice eggs) attached to hair shafts is a key differentiator from conditions like dandruff.
Treatment
Treatment options include over-the-counter and prescription medications. Following the application instructions is crucial. Home care practices include:
- Washing clothing and bedding in hot water.
- Vacuuming living areas.
- Refraining from sharing personal hair care items.
Prevention
Prevention strategies involve avoiding direct head-to-head contact and not sharing personal items like hats and brushes. Regular hair inspections, especially in children, are effective for early detection.
Societal and Psychological Impact
There is often a stigma associated with head lice infestations, leading to misconceptions about cleanliness and hygiene. Education is key in dispelling these myths and reducing stigma.
See Also
References
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Contributors: Kondreddy Naveen, Prab R. Tumpati, MD