Minnesota Barber State Practice Exam 2026 - Free Minnesota Barber Practice Questions and Study Guide

A common sign of a head lice infestation is itching and the presence of nits. Itching occurs as a response to the bites of the lice, which feed on blood from the scalp. This itching can lead to discomfort and scratching, potentially causing secondary infections. The presence of nits, which are the eggs of lice, is another key indicator of an infestation. Nits are often found stuck to hair shafts near the scalp and are small, white, or yellowish in color.

While blisters, red patches, and dryness may indicate other scalp conditions or irritations, they are not characteristic signs of a head lice infestation. Nits and itching specifically signal the presence of lice, making this answer the most accurate in identifying a lice problem. Understanding these signs is crucial for both prevention and effective treatment of head lice.