Hair Loss in South Africa: Causes, Diagnosis & Treatment Options

Hair loss (medically termed alopecia) can affect both men and women, presenting as either temporary shedding or progressive permanent thinning depending on the underlying cause. Identifying the exact etiology—whether genetic, hormonal, nutritional, or stress-induced—is essential for implementing effective medical treatments.

Types & Causes of Hair Loss

1. Androgenetic Alopecia (Hereditary Hair Loss)

Androgenetic alopecia is the primary cause of progressive hair loss globally and across South Africa.

• Men: Presents as a receding hairline alongside thinning at the vertex, following typical male pattern baldness.
• Women: Typically manifests as diffuse thinning across the crown or a widening central part, preserving the frontal hairline (female pattern hair loss).
• Etiology: Driven by genetic predisposition and cellular sensitivity of hair follicles to dihydrotestosterone (DHT), an androgenic metabolite.

2. Telogen Effluvium (Stress- or Systemic-Triggered Shedding)

• Etiology: A significant systemic shock pushes a high percentage of active growing follicles prematurely into the resting (telogen) shedding phase. Common triggers include high-fever illnesses, severe infections, childbirth, acute emotional trauma, rapid weight loss, or surgical procedures.
• Timeline: Diffuse shedding typically becomes noticeable 2 to 3 months following the initial physical or psychological stressor.
• Prognosis: Generally reversible once the primary physiological stressor is resolved.

3. Alopecia Areata

• An autoimmune condition where cellular immune responses mistakenly target hair follicles.
• Manifests as sudden, smooth, localized, round or oval patches of complete hair loss on the scalp or body.
• While localized areas may experience spontaneous regrowth, severe cases can progress to total scalp hair loss (alopecia totalis) or universal body hair loss (alopecia universalis).

4. Nutritional Deficiencies

Deficiencies in micronutrients essential for cellular hair matrix synthesis lead to diffuse shedding:

• Iron depletion and low serum ferritin levels (frequent in premenopausal women)
• Vitamin D (25-OH) deficiency
• Zinc deficiency