DermNet NZ

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Authoritative facts about the skin from the New Zealand Dermatological Society Incorporated.

Quiz 24

Diffuse hair loss

This quiz will test your diagnostic skills in diagnosing hair loss.

Diffuse hair loss from the scalp may present as an acute or subacute process without scarring, accompanied by shedding of telogen (bulb) or anagen (tapered) hairs, or more slowly as chronic thinning. In most cases, a careful history and examination reveals the cause. Where none is obvious, look for iron deficiency and thyroid disease.

Localised hair loss

A patient may present reporting one or more bald areas. This may or may not be accompanied by an inflammatory process with varying degrees of irritation, soreness, erythema, scaling and pustules and can be followed by permanent scarring (cicatricial alopecia). If scaling is present, a scraping should be arranged for mycology. It is often helpful to obtain one or more scalp biopsies from the active inflammatory edge. Refer to a dermatologist for specific diagnosis and management.

The quiz is worth 1.0 CME credit for Advanced Vocational Education purposes. DermNZ Continuing Education Quizzes has been endorsed by the Royal New Zealand College of General Practitioners (RNZCGP) and has been approved for up to 6 hours (= up to 12 credits for Advanced Vocational Education (AVE) and Maintenance of Professional Standards (MOPS) purposes).

For each of the fourteen cases, study the image(s) and then answer the questions. You can click on the image to view a larger version if required.

Each case should take approximately 2 minutes to complete. There is a list of suggested further reading material at the end of the quiz.

We regret to tell you that certificates of participation are no longer available.

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If you have any concerns with your skin or its treatment, see a dermatologist for advice.