Stress hair loss in London: telogen effluvium decoded
Stress-induced shedding is the most common reason 25–40 year-old Londoners walk into a trichology clinic. Here is what is happening and what to do.
Maya Levin
IAT Trichologist · East London
In short
- Acute stress pushes follicles into telogen — shedding appears 2–4 months later.
- Telogen effluvium is diffuse, never patchy, and almost always fully reversible.
- Recovery typically takes 6–9 months once the stressor resolves.
- Bloodwork is essential to rule out iron, thyroid and vitamin D issues that masquerade as stress.
London is a high-stress city. Trichology clinics see a steady flow of patients in their late 20s and 30s who started shedding three months after a breakup, a job change, a bereavement, or a bout of long Covid.
The diagnosis is almost always telogen effluvium — and the prognosis is almost always good.
How to tell it apart from pattern loss
Telogen effluvium is diffuse — thinning is even across the whole scalp. Pattern loss is regional — temples, crown or central parting. If you can identify a specific area that is thinner than the rest, pattern loss is the more likely diagnosis, even if stress was the trigger that unmasked it.
The recovery protocol
Trichologists across London consistently recommend the same approach:
- Bloodwork: ferritin, vitamin D, B12, TSH, free T4, zinc. Many 'stress' cases are actually deficiency cases.
- Address the stressor where possible — sleep, therapy, exercise.
- Maintain 1.2 g/kg protein daily — undereating during stress prolongs the shedding.
- Add topical minoxidil only if shedding persists beyond 6 months.
- Re-photograph monthly under the same light to track recovery objectively.
Frequently asked
Common questions
How long does stress hair loss last?+
Typically 6–9 months from when the stressor resolves. Chronic stress can extend it indefinitely.
Will it grow back the same?+
Almost always yes, unless an underlying pattern loss was unmasked by the stress episode.
Should I take supplements?+
Only based on bloodwork. Indiscriminate supplementation — especially of biotin — can mask thyroid disease on lab tests.
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