Question

What is the condition characterized by sudden loss of hair in round patches on the scalp or the body?

1) Alopecia areata
2) Psoriasis
3) Eczema
4) Ringworm

Answer 1

Alopecia areata is an autoimmune condition that leads to the sudden loss of hair in round patches. It is distinct from other skin conditions like ringworm, which causes rash, or psoriasis, which results in thick, red skin with scales.

Step-by-step explanation:

The condition characterized by sudden loss of hair in round patches on the scalp or the body is known as alopecia areata. This autoimmune disorder results in unpredictable hair loss, typically in clumps, and can affect just the scalp or the entire body.

Unlike tinea capitis (ringworm), which is a fungal infection creating ring-shaped rashes, or psoriasis, characterized by thick, red skin with silvery scales, alopecia areata's main symptom is the sudden falling out of hair. Eczema is another skin condition that involves inflammation but is not primarily associated with hair loss.