Finding more hair than usual on your pillow, clogging the shower drain, or wrapped around your brush is frightening. If you have landed on this page, you are probably mid-panic — counting the hairs, photographing your parting, scrolling through forums at 2am. I want you to know that what you are feeling is completely valid, and that you are not imagining it.
I am Dr Amy Vowler, and I specialise in women’s hair loss. I see patients every week who describe exactly what you are going through right now — the shock of noticing more scalp than usual, the dread of washing your hair, the quiet fear that it might not stop. Most of the time, there is a treatable cause. But you need the right investigation to find it, not a Google spiral.
This guide will walk you through the most likely reasons your hair is falling out, help you understand what is normal and what is not, and explain what to do next.
- – Finding more hair on your pillow, in the shower, or in your brush than usual is one of the most common reasons women visit Hair GP
- – Losing 50 to 100 hairs per day is normal — but a noticeable increase that lasts more than three months needs investigation
- – The most common causes in women are hormonal changes, nutritional deficiencies, stress-related shedding, and female pattern hair loss
- – Most types of hair loss in women are treatable, especially when caught early
- – If your hair loss is getting worse, book a consultation to get a diagnosis in one appointment
How Much Hair Loss Is Normal?
This is usually the first question. You have started noticing hair everywhere — on your clothes, between your fingers, circling the drain — and you need to know whether this is normal or whether something is wrong.
The average person loses between 50 and 100 hairs per day. That sounds like a lot, but most of the time you do not notice it because new hairs are growing in to replace them. You tend to notice hair loss most when you wash or brush your hair, simply because those actions dislodge hairs that were already in the process of falling. Wet hair clumps together, which is why a handful of hair in the shower looks far more alarming than the same number of individual strands scattered across your pillow.
So when should you actually be concerned? There are a few signs that suggest something beyond normal shedding is happening.
If your parting looks wider than it did six months ago, that is probably not shedding — that is thinning. Take a photograph of your parting today and compare it to older photos. This is often the most revealing indicator.
If your ponytail feels noticeably thinner, or you need an extra loop of the hair tie, your overall hair density is reducing.
If you are losing significantly more hair than usual and it has been going on for more than three months, something is likely driving that sustained shedding — and it warrants investigation.
If you can see your scalp through your hair in areas where you could not before, especially at the crown or along the parting, this needs medical attention.
The bottom line: occasional shedding is normal. A sustained, noticeable increase is your body telling you something has changed.
The Most Common Reasons Your Hair Is Falling Out
Women’s hair loss is not one condition. It is a category of conditions, each with different triggers, different patterns, and different treatments. Here are the seven most common causes I see in clinic.
Telogen Effluvium — Stress and Shock Shedding
This is the most common type of hair loss I see in women under 50. Telogen effluvium happens when a physical or emotional stressor pushes a large number of hair follicles into the resting phase simultaneously. Two to three months after the trigger, those hairs fall out — often quite dramatically.
Common triggers include severe stress, illness or surgery, crash dieting, stopping or starting hormonal contraception, and childbirth. The reassuring part is that telogen effluvium is almost always temporary. Once the trigger is identified and addressed, hair regrowth typically follows within six to twelve months. But if the trigger is ongoing — chronic stress, an undiagnosed thyroid problem, a nutritional deficiency — the shedding will continue until that root cause is treated. Read more in our guide to stress and hair loss.
Hormonal Changes
Hormones are one of the most common and most commonly overlooked drivers of hair loss in women. Your hair follicles are exquisitely sensitive to hormonal shifts, which is why so many women notice changes at very specific life stages.
Menopause and perimenopause bring declining oestrogen and relative increases in androgens, which can trigger diffuse thinning or unmask an underlying genetic pattern. PCOS raises androgen levels, which can cause thinning at the crown alongside other symptoms like acne and irregular periods. Thyroid disorders — both underactive and overactive — disrupt the hair growth cycle and are one of the most treatable causes of hair loss when identified. Coming off the contraceptive pill can trigger a temporary hormonal shift that leads to shedding, sometimes quite suddenly.
The key point is that hormonal hair loss requires specific blood tests to diagnose. A standard GP blood panel will not always include the hormonal markers needed. More on this in our guide to hormones and hair loss.
Nutritional Deficiencies
Your hair follicles are metabolically demanding. When your body is low on key nutrients, hair is one of the first things it deprioritises — because it is not essential for survival, even though it feels essential to you.
The most common deficiencies linked to hair loss in women are iron (measured as ferritin — and your ferritin can be “within range” on a standard blood test but still too low for healthy hair growth), vitamin D, vitamin B12, and zinc. Crash dieting, restrictive eating, heavy periods, and vegetarian or vegan diets without proper supplementation are all common contributors.
The good news is that nutritional hair loss is one of the most straightforwardly treatable causes — but you need a blood test to know which levels need correcting, and by how much. Our guide to vitamin deficiency and hair loss covers this in detail.
Alopecia Areata
Alopecia areata is an autoimmune condition where your immune system mistakenly attacks your hair follicles, causing smooth, round patches of complete hair loss. It can appear anywhere on the scalp and sometimes affects eyebrows or body hair as well.
It is not caused by stress alone, though stress can be a trigger in people who are genetically predisposed. Alopecia areata requires a different diagnostic and treatment approach from other forms of hair loss, and early treatment generally leads to better outcomes.
Female Pattern Hair Loss
Female pattern hair loss — also called androgenetic alopecia — is the most common cause of progressive, long-term thinning in women. It affects up to 40% of women by age 50 and typically presents as a gradually widening parting or diffuse thinning across the crown, while the frontal hairline is usually preserved.
It is genetic, it is hormonal, and it is progressive — meaning it will continue to worsen without treatment. The positive news is that when caught early, female pattern hair loss responds well to treatments like minoxidil, finasteride, and spironolactone. The earlier you start, the more hair you can preserve.
Medical Causes
Sometimes hair loss is the visible symptom of a condition happening elsewhere in your body. Thyroid disease, iron-deficiency anaemia, autoimmune conditions like lupus, and even some medications can all trigger or worsen hair loss.
This is precisely why a medical investigation matters. A trichologist can look at your scalp, but only a doctor can order the blood tests that reveal what is happening beneath the surface. Some of the patients I see in clinic have been losing hair for months because of an undiagnosed thyroid problem that a simple blood test could have identified.
Styling and Traction Damage
Tight ponytails, braids, buns, hair extensions, and chemical treatments can all cause traction alopecia — hair loss caused by sustained tension on the follicles. The hair loss typically appears at the temples, hairline, or wherever the tension is greatest.
Early-stage traction alopecia is reversible if the styling habits change. But prolonged tension can cause permanent follicle damage, which is why it is worth addressing sooner rather than later.
Why Is My Hair Falling Out in Clumps?
If you are finding actual clumps of hair on your pillow, in the shower, or coming away in your hands, I understand how terrifying that is. Clump shedding feels catastrophic in a way that gradual thinning does not — because it is sudden, visible, and impossible to ignore.
The two most likely causes of clump shedding are telogen effluvium and alopecia areata. With telogen effluvium, the shedding is diffuse — it comes from all over your scalp, and you will not typically see bald patches, just an overall reduction in volume. With alopecia areata, you may notice smooth, round patches where the hair has come away completely.
Less commonly, clump shedding can be associated with severe nutritional deficiency, thyroid crisis, a scarring alopecia, or a reaction to medication.
The important thing is this: hair falling out in clumps is your body sending a clear signal that something needs attention. It is not something to monitor for another few months or manage with a thickening shampoo. If this is happening to you, it is worth getting a proper diagnosis rather than guessing.
When Hair Loss in the Shower or While Brushing Is a Problem
Noticing hair in the shower or on your brush does not automatically mean something is wrong. Washing and brushing are the two activities most likely to dislodge hairs that are already in the resting phase and ready to fall. Wet hair clumps together, making the amount look far more dramatic than it actually is.
That said, there is a difference between normal shedding and excessive loss. If you are consistently pulling out large amounts of hair every time you wash — and this is noticeably more than your normal baseline — that sustained increase is worth investigating.
A useful rule of thumb: if someone who has not seen you in a few months would notice a difference in your hair, that is significant. If only you can tell, it may still warrant a check, but it is less likely to be urgent.
One thing I would strongly advise against is washing your hair less often to avoid seeing the shedding. This does not reduce hair loss — it simply means more hairs accumulate between washes, making the next wash look even more alarming. Wash your hair as often as you normally would as not washing it causes inflammation which can worsen hair loss.
What Your Hair Loss Pattern Can Tell You
Where you are losing hair matters as much as how much you are losing. The pattern of your thinning can point towards the likely cause before any blood test is run.
Diffuse thinning across the entire scalp — hair feels thinner everywhere, no specific bald spots — most commonly points to telogen effluvium or a nutritional deficiency. This is the shedding pattern, and it is often reversible. However you need to know what the cause is in order to reverse it.
Widening parting and thinning at the crown — with the frontal hairline mostly preserved — is the hallmark of female pattern hair loss. You might notice it as a “Christmas tree” pattern when you part your hair down the centre.
Smooth, round patches of complete hair loss — where the scalp is visible and smooth — typically indicate alopecia areata.
Thinning at the temples or hairline — especially if you regularly wear tight hairstyles, braids, or extensions — suggests traction alopecia.
Hair loss accompanied by scalp redness, itching, or scaling may indicate a scalp condition like seborrhoeic dermatitis or, less commonly, a scarring alopecia that needs prompt investigation.
Not sure which pattern matches yours? That is exactly what trichoscopy and a clinical examination are for. Our doctor can identify the pattern and confirm the diagnosis during your consultation.
What to Do Right Now
If you have read this far, you are past the googling stage and ready for a plan. Here is what I would recommend.
Step one: do not panic. Most hair loss in women is temporary, treatable, or both. The fact that you are investigating this is already the right move.
Step two: check the obvious triggers. Think about the last three to six months. Have you been under unusual stress? Changed your diet significantly? Started or stopped medication? Had surgery, illness, or a baby? Had a hormonal change like starting perimenopause or coming off the pill? Telogen effluvium has a two to three month delay between trigger and shedding, so the cause may not be immediately obvious.
Step three: get blood tests. A comprehensive blood panel for hair loss should include ferritin, vitamin D, thyroid function, full blood count, and — where appropriate — hormonal markers. This is the single most important step you can take, because it either identifies a treatable cause or rules one out. Many GPs will run basic bloods, but a specialist panel goes further.
Step four: see someone who specialises in this. Your GP is a reasonable starting point, but most GP appointments are ten minutes and most GPs have limited training in hair loss. An NHS dermatology referral can take months. A specialist hair loss clinic can give you a thorough examination, run the right tests, and build a treatment plan in one appointment — without waiting.
How a Hair Loss Specialist Can Help
A Hair GP consultation is a 50-minute medical appointment, not a brief screening. Here is exactly what happens.
The appointment begins with a detailed medical history — your health conditions, medications, family history of hair loss, hormonal history including your cycle, pregnancies, menopause status, and any previous diagnoses like PCOS or thyroid problems.
Next, a clinical scalp examination using trichoscopy — a magnified assessment that reveals miniaturisation, inflammation, and other diagnostic markers invisible to the naked eye. This is the examination that distinguishes one type of hair loss from another.
Based on what the history and examination reveal, blood tests are ordered (if needed)— a tailored panel, not a generic one. When results are back, you receive a clear diagnosis and an honest conversation about what can realistically be achieved, on what timeline. However many patients also bring along their NHS test results for me to review.
You leave with a personalised treatment plan — prescription treatments where appropriate, nutritional guidance based on your blood results, and a follow-up schedule to monitor your progress.
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Conditions Related to Hair Falling Out
Women’s hair loss is rarely simple, and the conditions behind it often overlap. If you are trying to understand your specific situation, these guides go deeper into each cause.
Female pattern hair loss is the most common cause of progressive thinning — and responds best to early treatment.
Telogen effluvium is the most common cause of sudden, diffuse shedding — and is almost always temporary with the right approach.
Hormonal hair loss covers everything from menopause to PCOS to thyroid — conditions that require specific blood tests and trichoscopy to identify.
Nutritional hair loss is one of the most treatable causes, once you know which levels need correcting.
Alopecia areata requires a different diagnostic and treatment path — early intervention matters.
Postpartum hair loss affects many new mothers and usually resolves, but can sometimes unmask a longer-term condition.
Frequently Asked Questions
A sustained increase in hair shedding is usually caused by one of three things — a physical or emotional stressor that triggered telogen effluvium two to three months earlier, a nutritional deficiency (most commonly iron, vitamin D, or B12), or a hormonal change such as menopause, thyroid dysfunction, or coming off the contraceptive pill. Occasional shedding is normal, but if the increase has lasted more than three months, a blood test panel can identify the cause. Book a consultation if the shedding is not resolving on its own.
The treatment depends entirely on the cause. Telogen effluvium from stress or illness usually resolves once the trigger is addressed. Nutritional deficiencies respond to targeted supplementation guided by blood results. Female pattern hair loss requires prescription treatments like minoxidil, finasteride, or spironolactone. Hormonal causes may need hormonal investigation and management. The first step is always a diagnosis — because the right treatment for one type of hair loss can be completely wrong for another.
A few hairs coming away when you run your fingers through your hair is normal — especially if you have not brushed it recently. You naturally lose 50 to 100 hairs per day, and some of those will dislodge with touch. However, if you are consistently pulling away clumps or noticing significantly more hair than usual, this could indicate telogen effluvium, a nutritional deficiency, or another underlying condition. If this has been happening for more than a few weeks, it is worth getting a professional assessment.
Yes, in the vast majority of cases. Stress-related hair loss — telogen effluvium — is temporary. Once the stressor resolves or is managed, the hair growth cycle typically normalises within six to twelve months. However, if the stress is ongoing or has triggered a secondary issue like a nutritional deficiency, the shedding may persist until that root cause is treated. A consultation can identify whether stress alone is responsible or whether something else is contributing.
The most common nutritional deficiencies linked to hair loss in women are iron (measured as ferritin), vitamin D, vitamin B12, and zinc. Importantly, your ferritin can be within the “normal” laboratory range but still too low for optimal hair growth — most hair loss specialists look for ferritin above 70, not just above the lab minimum. A comprehensive blood panel is the only reliable way to identify which deficiencies are contributing and guide the right supplementation. Read our full guide to vitamin deficiency and hair loss.
See a specialist if your hair shedding has continued for more than three months, if your parting is visibly wider than it was six months ago, if you are finding clumps of hair on your pillow or in the shower, if you have patches of complete hair loss, or if your GP has said there is nothing to be done but your hair is still getting worse. Early investigation leads to better outcomes — particularly for female pattern hair loss, where treatment is most effective when started before significant thinning has occurred. Book a consultation with Hair GP.
Some hair in the shower is completely normal. Washing dislodges hairs that are already in the resting phase, and wet hair clumps together making the amount look more alarming than it is. However, if you are consistently finding large amounts of hair in the drain — significantly more than your usual baseline — and this has persisted for more than a few weeks, it is worth investigating. Do not reduce how often you wash your hair to avoid seeing the shedding — this does not reduce hair loss, it just makes the next wash look worse.
Hair falling out in clumps is usually caused by telogen effluvium — a diffuse shedding phase triggered by stress, illness, surgery, nutritional deficiency, or hormonal change — or alopecia areata, an autoimmune condition that causes smooth round patches of hair loss. Clump shedding is your body sending a clear signal that something needs attention. If this is happening to you, a specialist consultation can identify the cause and start appropriate treatment rather than waiting for it to resolve on its own.
Book a Consultation
You have read this far because your hair loss is real, it is distressing, and you want answers — not another product recommendation. Hair GP exists because too many women are told to wait, told it is nothing, or pointed towards caffeine shampoos and biotin gummies that cannot address the actual cause.
Your first appointment covers everything: a full medical history review, trichoscopy scalp examination, a diagnosis, and a personalised treatment plan. One appointment. One doctor. A clear path forward.
Book your consultation today — £300 including assessment, trichoscopy, and treatment plan.
See our pricing page for full details, or explore our hair loss guides if you would like to learn more before you book.
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