Chapter 8: Hair & Scalp Disorders and Diseases

Vocabulary flashcards covering normal and abnormal hair loss, forms of alopecia, professional stylist responses, and specific hair disorders from Chapter 8.

Normal Hair Shedding

The natural daily shedding of approximately $50\text{--}100$ hairs per day from a healthy scalp.

Abnormal Hair Loss

Irregular hair loss characterized by excessive shedding, thinning, or bald patches.

Androgenic Alopecia

Hereditary hair loss that is visually identified by thinning hair at the crown or along the hairline.

Alopecia Areata

An autoimmune condition causing round patches of hair loss, visually observed as a smooth, round patch where hair is missing.

Postpartum Alopecia

Temporary hair shedding occurring after pregnancy due to hormonal changes, typically seen as thinning around the hairline and temples.

Professional Response to Hair Loss

The three-step protocol for stylists addressing client hair loss concerns: listen and be understanding, avoid diagnosing the condition, and recommend consulting a medical professional.

Canities

The technical term for grey or white hair resulting from the loss of pigment; it can appear all over the head, be congenital (such as albinism), or stem from age and stress factors.

Trichorrhexis Nodosa

A condition in which the hair shaft develops weak spots and breaks, visibly characterized by small white nodes along the shaft with fraying or breakage.

Monilethrix

A usually inherited condition resulting in beaded hair shafts, characterized visually by alternating thick and thin sections that resemble beads.

Cosmetological Care for Trichorrhexis Nodosa

Professional handling guidelines advising cosmetologists to avoid harsh chemicals and excessive heat on affected hair.

Cosmetological Care for Monilethrix

Professional handling guidelines instructing cosmetologists to treat the hair gently and avoid damaging chemical treatments.