Treatment of Telogen Effluvium
The primary treatment for telogen effluvium is identifying and removing the causative factor, with spontaneous remission occurring in up to 80% of cases with short duration (<1 year), making watchful waiting a legitimate first-line approach. 1, 2
Immediate Management Steps
1. Identify and Remove Triggering Factors
- Medication review is critical: Discontinue or substitute medications known to cause telogen effluvium, including systemic retinoids, antifungal agents, psychotropic medications, anticoagulants, and antihypertensive drugs. 3, 4
- Address physiologic stressors: Recent illness, surgery, childbirth, severe emotional stress, or rapid weight loss are common triggers that resolve spontaneously once the stressor is removed. 5, 6
- Evaluate nutritional deficiencies: Check serum ferritin, vitamin D, zinc, and folate levels, as these deficiencies are non-trivial in telogen effluvium patients. 7, 2
2. Nutritional Supplementation (When Deficiencies Identified)
- Iron supplementation: Address low ferritin levels, as iron deficiency is the most common nutritional deficiency worldwide and a sign of chronic diffuse telogen hair loss. 5
- Vitamin D supplementation: Correct deficiency (defined as <20 ng/mL), which shows strong association with hair loss. 5
- Zinc supplementation: Replace if serum zinc levels are low, as zinc serves as a cofactor for multiple enzymes involved in hair follicle function. 5
Important caveat: While nutritional deficiencies are associated with telogen effluvium, routine supplementation without documented deficiency has not been proven effective. 7
Pharmacologic Treatment Options
For Chronic Telogen Effluvium (>6 months duration)
- Oral minoxidil (0.25-2.5 mg daily) is the most evidence-based pharmacologic option, showing significant reduction in hair shedding scores at 6 months (mean reduction 1.7, p<0.001) and 12 months (mean reduction 2.58, p<0.001). 8
- Dosing: Start at 0.25-0.5 mg daily and titrate based on response and tolerability
- Expected timeline: Improvement in trichodynia (scalp pain) within 3 months; reduction in shedding by 6 months
- Side effects to monitor: Facial hypertrichosis (36% of patients), transient postural dizziness (5.6%), ankle edema (2.8%) 8
- Blood pressure monitoring: Mean change is minimal (−0.5 mmHg systolic, +2.1 mmHg diastolic) 8
Alternative Pharmacologic Options
- Topical minoxidil: While primarily studied for androgenetic alopecia, may be considered for chronic telogen effluvium, though oral formulation shows better compliance. 8
- Corticosteroids: May be used if inflammatory component is suspected, though evidence is limited for pure telogen effluvium. 6
- Novel treatments: CNPDA (caffeine, niacinamide, panthenol, dimethicone, and an acrylate polymer) has been proposed but lacks robust evidence. 6
Diagnostic Workup to Guide Treatment
- Hair wash test, trichogram, or phototrichogram: Confirm increased telogen shedding (>20% telogen hairs). 6
- Scalp biopsy: Reserve for cases where diagnosis is uncertain or to rule out miniaturization suggesting androgenetic alopecia. 6
- Laboratory testing: TSH (rule out thyroid disease), ferritin, vitamin D, zinc, folate. 2, 5
Management Algorithm
- Acute telogen effluvium (<6 months): Watchful waiting with trigger removal is appropriate, as 80% resolve spontaneously. 1, 2
- Chronic telogen effluvium (>6 months): Consider oral minoxidil 0.25-2.5 mg daily after correcting nutritional deficiencies. 8, 2
- Persistent cases: Re-evaluate for misdiagnosis (androgenetic alopecia, diffuse alopecia areata) with scalp biopsy. 6
Common Pitfalls to Avoid
- Over-supplementation without documented deficiency: Routine vitamin/mineral supplementation without laboratory confirmation is not evidence-based. 7
- Premature treatment: Many cases resolve spontaneously within 6-12 months; aggressive treatment may not be necessary. 1
- Misdiagnosis: Diffuse alopecia areata and early androgenetic alopecia can mimic telogen effluvium—biopsy when uncertain. 6, 5
- Ignoring psychological impact: Address anxiety and depression related to hair loss as part of comprehensive management. 2