---
title: "Hair loss: Symptoms, Causes & NHS Treatment | HealthAnswers"
description: "Hair loss has many causes — from pattern baldness to thyroid problems. Learn what helps, what the NHS offers, and when to see a GP. Reviewed by UK doctors."
url: https://healthanswers.co.uk/conditions/hair-loss/
robots: noindex
---

# Hair loss: Symptoms, Causes & NHS Treatment | HealthAnswers

Health A–Z

Hair loss has many causes — from pattern baldness to thyroid problems. Learn what helps, what the NHS offers, and when to see a GP. Reviewed by UK doctors.

Written by HealthAnswers editorial team Medically reviewed by [HealthAnswers UK doctor review panel](https://healthanswers.co.uk/our-doctors/) Reviewed 3 July 2026

## Quick answer

What is hair loss? Most adult hair loss is androgenetic alopecia (pattern baldness) — gradual thinning driven by genetics and hormones, treatable but not curable. Sudden patchy loss may be alopecia areata (autoimmune). Diffuse shedding after illness or stress is often telogen effluvium and usually recovers. See a GP for rapid loss, patches, scalp symptoms, or hair loss with other illness signs.

## Who is this page for?

This page is for people in the UK who want a plain-English overview of Hair loss, including when to seek help and what NHS care usually involves. It explains general information, not what is wrong with you personally.

## Who should skip this page?

Skip this page if you need a diagnosis, a prescription, or emergency care. It cannot replace a GP, pharmacist, NHS 111 or 999. If you are in immediate danger, call 999; for urgent advice that is not life-threatening, call 111 in England, Scotland or Wales, or use your GP out-of-hours service in Northern Ireland.

On this page 12 sections

## Key facts about hair loss

- Male pattern baldness affects about half of men by age 50; female pattern affects many women after menopause.
- Finasteride and minoxidil are the main NHS/private treatments for pattern baldness — results take months.
- Alopecia areata causes patchy hair loss and may regrow spontaneously or with treatment.
- Telogen effluvium — widespread shedding after stress, illness, or childbirth — usually temporary.
- Sudden patchy loss, scarring, or loss with scalp pain needs GP assessment.

## Understanding hair loss — types and facts

Hair loss (alopecia) is extremely common and one of the most searched health concerns online — especially among men worried about receding hairlines and women noticing widening partings. **Most hair loss is not a sign of serious disease**, but the **pattern and speed** of loss help determine cause and treatment.

Normal hair cycling: each follicle grows for years (anagen), rests (telogen), then sheds — **50 to 100 hairs daily** is normal. Loss becomes visible when shedding exceeds regrowth or follicles miniaturise.

## Male pattern baldness (androgenetic alopecia)

**The most common cause of hair loss in men** — affects roughly **30% of men under 30** and about **half by age 50**.

**Cause:** Genetic sensitivity of scalp follicles to **dihydrotestosterone (DHT)**, derived from testosterone. DHT shrinks follicles over time — hairs become finer and shorter until follicles stop producing visible hair.

**Pattern:**

- receding temples and hairline

- thinning at the crown (vertex)

- may progress to join — Hippocratic wreath pattern leaving hair at sides and back

**Key facts:**

- Not caused by poor circulation, clogged pores, or shampoo frequency

- Inherited — look at family history on both sides

- Not harmful to physical health — but affects confidence and mental wellbeing

- Progressive — rate varies person to person

**Treatments** — see our [hair loss treatments](https://healthanswers.co.uk/treatments/hair-loss-treatments/) guide: finasteride, minoxidil, hair transplant (private). No NHS cure — management slows progression.

## Female pattern hair loss

Affects many women — especially **after menopause** when oestrogen declines and relative androgen effect increases. Also seen in **PCOS** (higher androgens).

**Pattern:**

- widening parting at top of scalp

- diffuse thinning over crown — preserves frontal hairline (unlike men)

- rarely progresses to complete baldness

**Other causes more common in women:**

- telogen effluvium (see below)

- iron deficiency — especially with heavy periods

- thyroid disease

- tight hairstyles — traction alopecia

See a GP to exclude treatable causes before assuming pattern loss alone.

## Telogen effluvium — stress and shedding

**Widespread shedding** — often **2 to 3 months after a trigger**:

- severe illness, surgery, high fever (including COVID)

- significant emotional stress

- childbirth (postpartum telogen effluvium)

- crash dieting or rapid weight loss

- stopping oral contraceptive pill

- some medicines

**What happens:** More follicles enter telogen (rest) phase simultaneously — then shed together. Can feel alarming — **handfuls in the brush or shower**.

**Prognosis:** Usually **self-limiting** — regrowth over **6 to 12 months** once trigger resolves. Does not cause permanent baldness unless another condition coexists.

**What to do:** Identify and address trigger if possible; gentle hair care; reassurance. See GP if shedding persists beyond a year or scalp is inflamed.

## Alopecia areata — patchy autoimmune loss

**Immune system attacks hair follicles** — smooth, round **bald patches**, sometimes several. Can affect beard, eyebrows, eyelashes. **Nail pitting** may occur.

**Course unpredictable:**

- may regrow spontaneously within months

- may spread — alopecia totalis (whole scalp) or universalis (whole body) — rare

- may recur in cycles

**Not contagious.** Associated with other autoimmune conditions (thyroid disease, vitiligo) — slightly higher risk.

**Treatments:**

- wait and watch for small patches — many regrow

- steroid injections into patches (dermatology)

- topical steroids

- contact immunotherapy (DPCP) for extensive loss — specialist centres

- JAK inhibitors (e.g. baricitinib) — newer licensed options for severe cases — specialist only

Wigs and psychological support matter — sudden visible loss affects quality of life significantly.

## Other important causes

### Iron deficiency anaemia

Low ferritin (iron stores) linked to shedding — especially women with heavy periods. GP blood tests check ferritin, full blood count, thyroid.

### Thyroid disorders

Both **underactive** and **overactive** thyroid cause diffuse thinning — treatable when thyroid corrected.

### Medicines

Chemotherapy causes predictable temporary loss. Other medicines occasionally linked — anticoagulants, some antihypertensives, retinoids, mood stabilisers. **Do not stop prescribed medicines without medical advice.**

### Scalp conditions

**Ringworm (tinea capitis)** — patchy loss with scaling, more common in children — needs antifungals.

**Scarring (cicatricial) alopecia** — inflammation destroys follicles permanently. Redness, scaling, pain, or smooth shiny patches without visible pores — **urgent dermatology referral**.

### Traction alopecia

Tight braids, ponytails, extensions, religious headwear friction — loss at hairline. **Early stopping allows regrowth**; long-term traction causes scarring.

### Trichotillomania

Compulsive hair pulling — irregular broken hairs, often psychological component. CBT and habit reversal help.

## Diagnosis — what a GP does

- History — pattern, speed, triggers, family history, medicines, diet, periods, stress

- Scalp examination — patches vs diffuse, scaling, inflammation, scarring

- Pull test — gentle traction; many hairs coming out suggests active telogen effluvium

- Blood tests if indicated — ferritin, thyroid function, androgens (if PCOS suspected)

- Referral to dermatology for unclear diagnosis, scarring, or alopecia areata needing specialist treatment

**Hair does not need to be washed before appointment** — contrary to popular myth.

## Treatments for pattern baldness

### Minoxidil (Regaine)

**Topical** — 2% or 5% solution or foam applied to scalp **once or twice daily**.

**Works for:** men and women with pattern loss.

**Mechanism:** Widens small vessels, extends anagen phase — exact mechanism not fully understood.

**Timeline:** **4 to 6 months minimum** before visible improvement. Initial **shedding** in first weeks is common — old hairs pushed out as new growth starts.

**Side effects:** Scalp irritation, unwanted facial hair if drips onto face. **Stop if pregnant** — not for use in pregnancy.

**Availability:** Over the counter and pharmacy. NHS prescribing possible in some areas.

**Important:** Benefits **reverse within months of stopping** — treatment is ongoing.

### Finasteride (Propecia)

**Oral** — **1mg daily** for men only.

**Mechanism:** Blocks **5-alpha reductase**, reducing DHT by ~60%. Slows loss and regrows hair in ~90% of men (stops worsening) with visible regrowth in ~65% over 2 years in trials.

**Side effects (uncommon):**

- reduced libido, erectile dysfunction — usually reversible on stopping

- depression reported rarely

- must not be handled by pregnant women — crushed tablets risk to male foetus

**Availability:** Private prescription common; NHS GP may prescribe off-label in some cases. **Not for women.**

**Higher dose finasteride (5mg — Proscar)** treats enlarged prostate — do not split tablets for hair loss without medical guidance.

### Dutasteride

Blocks both type 1 and 2 5-alpha reductase — stronger DHT suppression. Used off-label for hair loss — not first-line on NHS. Similar side effect profile to finasteride.

### Hair transplant (FUE/FUT)

Private procedure — follicles from permanent zone (back/sides) moved to thinning areas. **Costs thousands of pounds.** Results depend on surgeon skill and ongoing medical therapy to protect remaining native hair. Not available on NHS for cosmetic reasons.

### Low-level laser therapy, PRP, microneedling

Mixed evidence — some small studies show modest benefit. Not standard NHS treatments. Expensive private options.

### Wigs and camouflage

**NHS wig provision** on prescription for alopecia areata and some medical hair loss — synthetic or partial human hair depending on criteria. Real hair wigs may have patient contribution.

Cosmetic fibres, scalp micropigmentation — cosmetic options without medical treatment.

## What does not work (evidence)

- Regular shampoo brand changes — does not cause or cure baldness

- Scalp massage alone — pleasant but no proven regrowth

- Biotin megadoses — unless deficient

- Caffeine shampoos — minimal evidence vs minoxidil

- “Block DHT” herbal supplements — unregulated, unproven

- Shaving head to thicken hair — cut hair feels coarser at the tip but does not change follicle

## Hair loss and mental health

Visible hair loss affects self-esteem, social confidence, and body image — for men and women. **Alopecia areata** in particular causes significant distress.

Support:

- Alopecia UK — peer support and information

- GP can refer for counselling if anxiety or depression develop

- realistic expectations about treatments — improvement, not perfection

## Children and hair loss

**Not normal** for children to have significant thinning. Causes include:

- tinea capitis — needs antifungal treatment

- alopecia areata

- trichotillomania

- telogen effluvium after illness

Always see a GP for childhood hair loss.

## Practical summary

| Pattern | Likely cause | Action |
| --- | --- | --- |
| Gradual receding/thinning crown (men) | Male pattern | Minoxidil, finasteride, or accept; GP to discuss |
| Widening part, top thinning (women) | Female pattern or telogen | GP — check ferritin, thyroid |
| Round smooth patches | Alopecia areata | GP — may need dermatology |
| Diffuse shedding after illness/stress | Telogen effluvium | Usually wait; treat trigger |
| Patches with scaling in child | Ringworm | GP — antifungals |
| Painful/red/scarring scalp | Scarring alopecia | Urgent dermatology |

Hair loss is common, often treatable, and rarely dangerous — but the right diagnosis matters because **treatment depends entirely on cause**. A GP visit for proper assessment is worthwhile before spending on unproven products.

## ! When to see a GP about hair loss

See a GP for sudden or patchy hair loss, bald patches, scalp itching/burning/pain, scaling or redness, hair loss with fatigue or weight change, or if you are under 20 with significant loss. Pattern baldness does not need urgent review but a GP can confirm diagnosis and discuss treatment options. See a GP urgently if hair loss follows a severe scalp burn or injury.

## Common questions about hair loss

Why is my hair falling out? Common causes include male or female pattern baldness (gradual thinning), telogen effluvium (shedding after stress, illness, surgery, or childbirth), alopecia areata (immune patches), thyroid disorders, iron deficiency, and some medicines. Less common — scalp infections, scarring alopecia, and traction from tight hairstyles. Can hair loss be reversed? Pattern baldness can be slowed and partially reversed with treatment (finasteride, minoxidil) — but not cured. Telogen effluvium usually resolves when the trigger passes — regrowth in 6 to 12 months. Alopecia areata may regrow on its own or with steroids/immunotherapy. Scarring alopecia causes permanent loss if not treated early. Does stress cause hair loss? Yes — significant physical or emotional stress can trigger telogen effluvium, pushing more hairs into the shedding phase 2 to 3 months later. Stress does not cause male pattern baldness directly but may unmask it or worsen shedding. Chronic stress affects overall health including hair. Is finasteride safe for hair loss? Finasteride 1mg daily is licensed for male pattern baldness. It blocks DHT, slowing loss and promoting regrowth in many men. Side effects are uncommon but can include reduced libido and erectile difficulties — usually reversible on stopping. Not for women who could become pregnant (risk to male foetus). Available on private prescription; NHS prescribing varies. Does minoxidil work for women? Yes — minoxidil 2% or 5% solution/foam is used for female pattern hair loss as well as male. Apply to scalp daily; initial increased shedding can occur before improvement. Results take 4 to 6 months minimum. Available over the counter (Regaine) and on NHS