What signs indicate that I have lice? - briefly
Typical signs include persistent scalp itching, especially behind the ears and at the nape of the neck. Visible live lice or tiny, white, oval nits firmly attached to hair shafts near the scalp confirm an infestation.
What signs indicate that I have lice? - in detail
Lice infestations present several observable and sensory indicators. Itching of the scalp, often described as a persistent, localized irritation, is one of the most common complaints. The itch results from an allergic reaction to lice saliva and typically intensifies several hours after a feeding session.
Visible evidence can be detected through careful examination of the hair. Live lice appear as small, gray‑brown insects approximately the size of a sesame seed, moving quickly along the hair shaft. Nits, the eggs, are oval, yellow‑white structures firmly attached to the hair close to the scalp. They are most often found behind the ears, at the nape of the neck, and along the crown. Nits that have hatched become empty shells, which remain attached and may be mistaken for debris; their presence still signals infestation.
Additional signs include:
- Red, irritated spots on the scalp caused by scratching.
- Small sores or crusted lesions that develop from repeated trauma.
- A feeling of “tickling” or movement in the hair, reported especially by children.
- Restlessness, difficulty concentrating, or frequent head‑rubbing during school or work.
In severe cases, secondary bacterial infection may appear, characterized by swelling, pus, or increased pain around the affected area. Prompt identification of these signs enables timely treatment and prevents further spread.