Stress and Hair Loss: Understanding Telogen Effluvium

You’ve been through a rough few months — work pressure, sleepless nights, maybe a health scare or a major life change. Things start to settle down, and then, seemingly out of nowhere, your hair starts falling out. Not a few strands — clumps. In the shower, on your pillow, between your fingers.

This delayed hair loss after a stressful event has a name: telogen effluvium. It’s one of the most common types of hair loss we treat at MU Scalp in Kota Kinabalu, and one of the most frightening for patients — because the shedding can be dramatic and seemingly unexplained.

What Is Telogen Effluvium?

To understand telogen effluvium, you need to understand the hair growth cycle. Your hair goes through three phases: anagen (active growth, lasting 2–7 years), catagen (transition, lasting 2–3 weeks), and telogen (resting, lasting about 3 months, after which the hair falls out naturally).

At any given time, about 85–90% of your hair is in the growth phase and 10–15% is in the resting phase. This is why losing 50–100 hairs daily is normal — it’s just the natural turnover of hairs completing their cycle.

With telogen effluvium, a significant physical or emotional stress event shocks a large number of hairs out of the growth phase and into the resting phase simultaneously. Three months later — when those resting hairs reach the end of the telogen phase — they all fall out at once.

This is why the hair loss seems to come “out of nowhere.” The trigger happened months ago.

Common Triggers

In our KK centre, the most frequent triggers we see include:

Physical stress: Major illness or surgery, high fever (including dengue and COVID-19 — both common in Sabah), significant weight loss or crash dieting, iron deficiency, and thyroid dysfunction.

Emotional stress: Job loss or financial strain, death of a loved one, divorce or relationship breakdown, and prolonged work-related burnout. KK’s growing economy brings opportunity but also pressure — we see plenty of stressed professionals.

Hormonal changes: Pregnancy and childbirth are among the most common triggers (see our article on postpartum hair loss). Starting or stopping birth control pills and menopause-related hormonal shifts also qualify.

Nutritional: Crash dieting, restrictive diets, and iron or vitamin D deficiency. These are particularly common among young women in KK who are dieting aggressively.

How to Tell If It’s Telogen Effluvium

Telogen effluvium has a distinctive pattern that differs from other types of hair loss:

Diffuse shedding — hair falls out evenly from all over the scalp, not in patches or from the hairline. You won’t see bald spots; instead, your overall density reduces.

Delayed onset — the shedding starts 2–4 months after the triggering event, not immediately during the stressful period.

No scalp changes — your scalp looks normal. No redness, flaking, or scarring.

Volume of shedding — it can be alarming. Instead of 50–100 hairs per day, you might be losing 200–300 or more. The shower drain and hairbrush become distressing.

At MU Scalp, we use professional scalp analysis to confirm the diagnosis — examining follicle ratios, hair density, and the characteristics of the shedding to distinguish telogen effluvium from other conditions.

Will It Grow Back?

This is the first question every patient asks. And in most cases, the answer is yes.

Telogen effluvium is typically self-limiting. Once the triggering stressor is resolved, the hair follicles return to the growth phase and new hair begins to grow. The full recovery cycle takes 6–12 months, sometimes longer.

However — and this is an important caveat — there is a chronic form of telogen effluvium where shedding continues for more than 6 months. This happens when the underlying trigger hasn’t been resolved (ongoing stress, persistent nutritional deficiency, undiagnosed thyroid issues) or when multiple triggers overlap.

This is why a proper diagnosis matters. If the underlying cause isn’t identified and addressed, the shedding can persist indefinitely.

How We Treat It

Treatment for telogen effluvium at MU Scalp focuses on three areas:

1. Identify and address the trigger. This is the most important step. Through a thorough consultation, we work backwards from the onset of shedding to identify what happened 2–4 months prior. If there’s an ongoing issue — nutritional deficiency, thyroid dysfunction, chronic stress — we address it.

2. Support the recovery. Once the trigger is managed, we use targeted approaches to support follicle recovery and encourage new growth. This might include nutritional supplementation (particularly iron, vitamin D, and biotin if deficient), scalp treatments to create an optimal growth environment, and stress-reduction support.

3. Monitor progress. We track your hair density over time to ensure the shedding is slowing and new growth is emerging. This gives you objective evidence that recovery is happening — which itself reduces anxiety about the condition.

The Stress-Hair-Stress Cycle

Here’s something we frequently warn patients about: the stress of hair loss itself can perpetuate the problem. You lose hair because of stress, then stress about the hair loss, which keeps the follicles in the resting phase longer. It becomes a vicious cycle.

Breaking this cycle requires both understanding (knowing that telogen effluvium is temporary and treatable) and action (getting a diagnosis and treatment plan so you’re not just hoping for the best).

When to Seek Help

If you’ve been shedding noticeably more hair than usual for more than 4 weeks, it’s time for an assessment. Don’t wait until you’ve lost significant volume — early intervention can speed recovery and rule out other conditions that may require different treatment.

At MU Scalp, we treat telogen effluvium with the seriousness it deserves. It may be “just stress,” but the impact on your confidence and daily life is very real.

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Dr. Lu Ying Shean is the founder of MU Scalp & Hair Growth Solutions in Kota Kinabalu. If you’re experiencing unusual hair shedding, book a consultation at +60 14-366 9770.