Stress and Hair Loss: Understanding Telogen Effluvium and How to Recover

Medically reviewed by a GMC-registered doctor at The PRP Clinic | Last updated: February 2026

You notice more hair on your pillow than usual. Clumps come away in the shower. Your hairbrush fills up twice as fast. The alarming realisation that you are losing significantly more hair than normal triggers — somewhat ironically — even more stress.

If this sounds familiar, you may be experiencing telogen effluvium, the medical term for stress-related hair shedding. It is one of the most common types of hair loss, affecting both men and women, and it has become increasingly prevalent in recent years. Data from 2025 suggests that nearly half of people aged 18-34 who report noticeable hair loss identify stress as a contributing factor.

The good news is that stress-related hair loss is, in most cases, fully reversible. The follicles are not damaged — they have simply been pushed into a resting state prematurely. With the right support, they can be encouraged to re-enter the growth cycle and produce healthy hair again.

This guide explains exactly how stress causes hair loss, what telogen effluvium looks like, how it differs from other types of hair loss, and what you can do — and what we can do — to accelerate your recovery.

Experiencing increased hair shedding? Our doctors can diagnose the cause, check for contributing factors, and build a recovery plan.

Book Your Assessment on WhatsApp → | Email: team@thewellnesslondon.com

How stress causes hair loss

To understand stress-related hair loss, you need to understand the hair growth cycle. At any given time, approximately 85-90% of your hair is in the anagen (growth) phase, which lasts 2-7 years. Around 1-2% is in the catagen (transition) phase. And approximately 10-15% is in the telogen (resting) phase, which lasts about 3 months before those hairs shed naturally and are replaced by new growth.

When your body experiences significant stress — whether physical, emotional, hormonal, or nutritional — it can trigger a disproportionate number of follicles to prematurely shift from the growth phase into the resting phase simultaneously. This is a survival mechanism: the body conserves resources by reducing energy expenditure on non-essential functions like hair production.

The result is that 2-4 months later (the duration of the telogen phase), a large volume of hair sheds at once. This delay between the stressful event and the visible hair loss is characteristic of telogen effluvium, and it often catches people off guard — you may not immediately connect the shedding to something that happened months earlier.

The biological mechanism involves elevated cortisol (the body's primary stress hormone), which disrupts the hormonal signals that maintain the growth phase, promotes premature catagen entry, reduces blood flow to the scalp, and triggers inflammation around hair follicles.

Common triggers for telogen effluvium

Emotional and psychological stress including bereavement, relationship breakdown, job loss, financial pressure, and prolonged anxiety. The threshold varies between individuals — what triggers telogen effluvium in one person may not affect another.

Physical stress and illness including surgery, severe infections (notably including COVID-19, which triggered widespread telogen effluvium), high fevers, significant weight loss, and chronic illness.

Hormonal changes including post-partum hair loss (one of the most common forms), starting or stopping hormonal contraception, thyroid dysfunction, and menopausal transition.

Nutritional deficiency including iron deficiency (particularly low ferritin), vitamin D deficiency, zinc deficiency, protein deficiency, and crash dieting or extreme calorie restriction.

Medications including certain antidepressants, beta-blockers, retinoids, anticoagulants, and some hormonal treatments.

In many cases, multiple triggers overlap — stress leads to poor eating, which leads to nutritional depletion, which compounds the hair shedding. Identifying and addressing all contributing factors is essential for recovery.

How to recognise telogen effluvium

Telogen effluvium has a distinctive presentation that differs from other types of hair loss. The shedding is diffuse — it affects the entire scalp rather than specific areas. You notice more hair falling out during washing, brushing, and on your pillow. The hair that sheds typically has a small white bulb at the root (the telogen club hair). The scalp itself appears normal — there is no scarring, redness, or scaling. Hair pull tests may yield more hairs than expected.

What telogen effluvium is not: it does not cause complete bald patches (that is more likely alopecia areata), it does not cause a receding hairline or crown thinning in a specific pattern (that suggests androgenetic alopecia), and it does not cause scarring or scaling (which would suggest other dermatological conditions).

However, it is important to note that telogen effluvium and pattern hair loss can coexist. Stress can unmask or accelerate underlying androgenetic alopecia. This is one reason why professional diagnosis matters — treatment needs to address all contributing factors.

Not sure what is causing your hair loss? A proper assessment distinguishes between stress-related shedding, pattern hair loss, nutritional causes, and other conditions — ensuring the right treatment approach.

Get a Professional Diagnosis on WhatsApp → | Email: team@thewellnesslondon.com

How we treat telogen effluvium at The PRP Clinic

Our approach addresses every factor contributing to your hair shedding, rather than simply waiting for it to resolve on its own.

Step 1: Comprehensive investigation. Blood tests check for ferritin, full blood count, thyroid function, vitamin D, B12, folate, zinc, sex hormones, and inflammatory markers. This identifies any nutritional or hormonal factors that may be prolonging or worsening the shedding.

Step 2: Nutritional correction. Based on your blood results, we design a personalised supplement protocol to correct any deficiencies. Restoring optimal ferritin, vitamin D, and zinc levels creates the foundation your follicles need to resume healthy growth.

Step 3: PRP therapy. PRP delivers concentrated growth factors directly to the scalp, stimulating follicles to re-enter the growth phase, reducing the inflammatory environment that accompanies telogen effluvium, and improving blood supply to hair follicles. Clinical evidence shows PRP can accelerate recovery from telogen effluvium beyond what nutritional correction alone achieves.

Step 4: Ongoing support. We monitor your progress, adjust your supplement protocol as blood levels improve, and provide guidance on stress management and lifestyle factors that influence recovery.

This comprehensive approach is why our patients — including those experiencing stress-related hair loss — consistently see strong results.

Will my hair grow back?

For the vast majority of telogen effluvium patients, yes. The follicles are not permanently damaged. They have been pushed into a dormant state and, with the right support, will produce healthy hair again.

The typical recovery timeline is 3-6 months for shedding to reduce once triggers are addressed, 6-9 months for noticeable regrowth, and 12-18 months for full recovery to pre-shedding density. PRP and nutritional optimisation can significantly accelerate this timeline.

In some cases, chronic telogen effluvium — shedding that persists beyond six months — may develop if the underlying triggers remain unresolved. This requires thorough investigation to identify and address all contributing factors, which is exactly what our doctor-led assessment provides.

You do not have to wait for your hair to recover on its own. We can identify what is driving the shedding and actively accelerate your recovery.

Start Your Recovery on WhatsApp →

📧 Email: team@thewellnesslondon.com 📍 Location: Marylebone, London (5 minutes from Baker Street) ⭐ 187 five-star reviews | Doctor-led hair loss recovery

Frequently asked questions

Can stress cause hair loss?

Yes. Stress triggers telogen effluvium, causing diffuse shedding 2-4 months after a significant stressor.

Will stress-related hair loss grow back?

In most cases, yes. Recovery typically takes 6-12 months but can be accelerated with PRP and nutritional support.

How long does telogen effluvium last?

Acute episodes resolve within 3-6 months of trigger removal. Chronic cases lasting beyond 6 months need medical investigation.

Can PRP help?

Yes. PRP stimulates follicles to re-enter the growth phase and reduces inflammation, accelerating recovery.

How is it different from pattern hair loss?

Telogen effluvium is diffuse and triggered by events. Pattern hair loss affects specific areas and is driven by genetics/hormones. Both can coexist.

This article is for informational purposes only. Always consult a qualified healthcare professional.