Final answer:
Recognizable signs of head lice, or pediculosis capitis, include intense itching, visible lice or eggs on the hair, and small red bumps or sores on the scalp or neck.
Step-by-step explanation:
Recognizable signs of pediculosis capitis, which is commonly known as head lice, include intense itching on the scalp, visible lice or eggs (nits) on the hair shafts, and small red bumps or sores on the scalp or neck. These signs can usually be observed during a visual inspection of the scalp and hair. It is important to note that head lice infestations are common among school-age children, and prompt treatment is necessary to prevent the spread to others.