CCP CCP Trichology & Hair Science 2 — Questions and Answers
Question 1: A client presents with circular, scaly patches on the scalp with broken hair shafts. Which condition does this most likely indicate?
- Psoriasis
- Tinea capitis (Correct answer)
- Seborrheic dermatitis
- Pityriasis
Correct answer: Tinea capitis
Tinea capitis is a fungal infection of the scalp characterized by circular, scaly lesions and broken hair shafts near the follicle.
Question 2: What percentage of scalp hair is typically in the active growth (anagen) phase at any given time?
- 10–15%
- 50–60%
- 85–90% (Correct answer)
- 99–100%
Correct answer: 85–90%
Approximately 85–90% of scalp hairs are in the anagen (growth) phase at any given time, which can last 2–7 years.
Question 3: What is the name of the structure at the base of the hair follicle that supplies nutrients and blood to the hair?
- Sebaceous gland
- Arrector pili
- Dermal papilla (Correct answer)
- Hair bulb
Correct answer: Dermal papilla
The dermal papilla is a cluster of connective tissue and capillaries at the base of the follicle that nourishes the hair and controls growth.
Question 4: Which type of hair loss is caused by sensitivity to dihydrotestosterone (DHT) and is the most common form in men?
- Traction alopecia
- Androgenetic alopecia (Correct answer)
- Alopecia areata
- Telogen effluvium
Correct answer: Androgenetic alopecia
Androgenetic alopecia (male or female pattern baldness) is driven by genetic sensitivity to DHT, which shrinks hair follicles over time.
Question 5: What is 'porosity' in the context of hair science?
- The diameter or width of a single hair strand
- The ability of hair to absorb and retain moisture (Correct answer)
- The amount of natural oils on the scalp
- The elasticity of the hair cortex
Correct answer: The ability of hair to absorb and retain moisture
Hair porosity refers to the cuticle's ability to absorb and retain moisture, which directly affects how well chemical services and conditioners penetrate the shaft.
Question 6: Monilethrix is a rare hair disorder characterized by which of the following?
- Excessive scalp oiliness
- Beaded or nodular hair shafts that are prone to breakage (Correct answer)
- Abnormal hair growth in unusual locations
- Complete absence of hair from birth
Correct answer: Beaded or nodular hair shafts that are prone to breakage
Monilethrix is a genetic disorder that produces spindle-shaped nodes on the hair shaft separated by constrictions, making hair fragile and prone to breaking.
CCP CCP Trichology & Hair Science 2
A client presents with circular, scaly patches on the scalp with broken hair shafts.
Which condition does this most likely indicate?