Phthiriasis capitis is a medical term used to describe a parasitic infestation of the scalp characterized by the presence of lice. The spelling of phthiriasis capitis may seem daunting due to the combination of silent letters and uncommon consonant clusters. To break it down using the IPA phonetic transcription, the first syllable is pronounced / ˈtɪr i ə sɪs /, with the "ph" and "h" being silent. The second word, "capitis", is pronounced / kəˈpɪtɪs /, with the "p" and "t" sounding together as a voiceless alveolar affricate.
Phthiriasis capitis is a medical condition commonly known as head lice infestation. It refers to the presence of tiny insects called head lice on the scalp and hair. These insects are small and wingless, approximately two to three millimeters in length, and feed on human blood. Phthiriasis capitis is highly contagious and mainly affects children, although adults can also be affected.
The infestation occurs via direct contact with an affected individual or by sharing common items such as combs, hats, or pillows. Common symptoms of phthiriasis capitis include intense itching, especially behind the ears and at the nape of the neck, scalp irritation, and the presence of lice eggs or nits attached to the hair shafts. Scratching the infested areas may lead to secondary infections.
To treat phthiriasis capitis, over-the-counter and prescription medications are commonly used. These medications typically contain chemicals such as pyrethrins or permethrin, which kill the lice and their eggs. In addition to medication, manual removal of lice and nits using a fine-toothed comb is also recommended.
Prevention of phthiriasis capitis involves maintaining good personal hygiene, avoiding sharing personal items, and frequent laundering of bedding and clothing. It is important to screen and treat all close contacts of an affected individual to prevent reinfestation.
Overall, phthiriasis capitis is a parasitic infestation characterized by the presence of head lice on the scalp and hair. Prompt treatment and preventive measures are essential to manage this condition effectively.
Pediculosis capitis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "phthiriasis capitis" comes from Greek and is derived from two root words: "phthiriasis" and "capitis".
1. "Phthiriasis" (Φθιρίασις) is derived from the Greek word "phtheir" (φθείρ), which means "louse" or "parasite".
2. "Capitis" (κάπιτος) is the genitive form of "caput", which means "head" in Latin.
Therefore, "phthiriasis capitis" literally translates to "louse infestation of the head". It refers to a condition commonly known as head lice, where the scalp is infested by parasitic insects called lice.