What are the symptoms of lice infestation? - briefly
Intense itching, especially behind the ears and at the neckline, accompanied by a tickling feeling on the scalp, signals a lice problem; visible white or brown nits attached to hair shafts and small red bumps from bites further confirm the infestation.
What are the symptoms of lice infestation? - in detail
Lice infestation manifests through several observable signs that affect the scalp, hair, and skin. The most common indication is the presence of live insects, which appear as tiny, grayish‑brown bodies moving quickly through hair shafts. Nits—immobile, oval eggs attached firmly to the base of each hair strand—are another reliable marker; they resemble small, white or yellowish specks and can be distinguished from dandruff because they do not detach easily.
Itching, caused by an allergic reaction to lice saliva, typically develops within days of colonization. The itch may be localized to the neck, ears, or forehead and often intensifies after prolonged periods of inactivity, such as during sleep. Scratching can lead to secondary skin irritation, redness, and occasional small abrasions.
Additional symptoms include:
- Visible crawling insects on the scalp or in hair.
- Stubborn, attached nits close to the scalp, especially behind the ears and at the nape of the neck.
- Persistent itching that worsens at night.
- Red, inflamed patches resulting from repeated scratching.
- Sores or small wounds where the skin has been broken.
- A tickling or crawling sensation reported by some individuals, indicating active movement of the parasites.
In severe cases, excessive scratching may cause hair loss in localized areas, and secondary bacterial infection can develop if the skin barrier is compromised. Early identification of these signs enables prompt treatment and reduces the risk of spread to others.