Postpartum hair loss: why it happens and what helps

Newborn · Wellbeing · Reviewed 20 June 2026 · All articles

Reaching into the shower drain and pulling out a handful of hair is one of those postpartum surprises that nobody warns you about quite enough. In the weeks after birth, many new mothers notice their hair coming out in larger-than-normal quantities on the pillow, in the brush, and in the shower. It can be alarming, and at a time when the body has already been through so much, seeing your hair thin noticeably can feel genuinely distressing. The reassuring reality is that this shedding is a well-understood, temporary response to the hormonal changes of pregnancy and birth, and for most people it resolves on its own within the first year.

This article explains the science of why postpartum hair loss happens, what a normal timeline looks like, how to tell it apart from other types of hair loss that might need medical attention, and what the evidence says actually helps versus what is being oversold.

What is postpartum hair loss?

The medical term for postpartum hair loss is telogen effluvium. To understand why it happens, it helps to know a little about the hair growth cycle.

Hair follicles do not grow continuously. Each follicle cycles through three main phases: anagen (active growth, lasting two to seven years), catagen (a brief transitional phase), and telogen (a resting phase lasting around three months, after which the hair falls out and a new growth cycle begins). At any given time, roughly 85 to 90 percent of the scalp's follicles are in the growth phase, and about 10 to 15 percent are resting. This is why we shed around 50 to 100 hairs a day under normal circumstances, which typically goes unnoticed because regrowth keeps pace.

During pregnancy, elevated levels of oestrogen and progesterone alter this balance significantly. High oestrogen extends the anagen growth phase and keeps follicles that would normally transition to the resting phase locked in active growth. The result is that many pregnant women experience a noticeable thickening and lushness to their hair, with less ordinary daily shedding. This is the body directing resources towards the growing baby, but it also means that many more follicles than usual are sitting in a prolonged growth phase rather than cycling through normally.

After birth, oestrogen and progesterone levels drop steeply and rapidly. This hormonal shift is the trigger for a mass, synchronised transition of all those follicles that were held in the growth phase. They all enter the telogen resting phase at once, and roughly three months later, they all start shedding together. The result is a large, sudden increase in daily hair loss, which can feel alarming even though the total hair count is simply returning to its pre-pregnancy baseline. The American College of Obstetricians and Gynecologists (ACOG) acknowledges this pattern as a normal physiological response, and the NHS lists postpartum hair changes as an expected part of the body's recovery after birth.

When does it start and how long does it last?

Postpartum telogen effluvium typically begins between two and four months after birth. Many mothers notice the first significant shedding around the six-to-eight-week mark, though it often builds gradually before reaching its peak. The heaviest shedding tends to occur around the three-to-four-month point after delivery.

The NHS advises that postpartum hair loss usually resolves by the time the baby is around twelve months old. For many people it has substantially improved well before that, often by the six-month mark. Hair regrowth begins as follicles re-enter the anagen phase, and you may start to notice shorter, slightly fluffy new hairs along the hairline and parting as early as four to six months postpartum. These regrowth hairs are a sign that the cycle is moving forward.

It is worth noting that the experience varies between individuals. Some people find the shedding barely noticeable. Others describe losing what feels like enormous amounts and noticing visible thinning at the temples or crown. Both experiences sit within the normal range of postpartum telogen effluvium. The overall quantity of hair being shed is a function of how many follicles were held in the prolonged growth phase during pregnancy, which varies from person to person and pregnancy to pregnancy.

If you are breastfeeding, the hormonal picture is slightly different: prolactin remains elevated while you nurse, which may slightly delay or prolong the shedding phase for some mothers. This does not mean breastfeeding causes more hair loss, but the timeline may extend a little beyond what non-breastfeeding mothers experience. Weaning can trigger another brief round of shedding as hormone levels shift again.

Is postpartum shedding the same as other types of hair loss?

It is important to distinguish postpartum telogen effluvium from other types of hair loss, because some conditions that cause hair shedding require medical attention and separate treatment.

Androgenetic alopecia (commonly known as female pattern hair loss) involves a gradual, progressive thinning concentrated at the crown and parting, driven by sensitivity to androgens. Unlike postpartum telogen effluvium, it does not resolve on its own and tends to worsen over time. It is not triggered by birth, though the hormonal fluctuations of the postpartum period can sometimes unmask a pre-existing tendency toward it.

Alopecia areata is an autoimmune condition in which the immune system attacks hair follicles, causing smooth, distinct bald patches. This is quite different from the diffuse, overall thinning of telogen effluvium. Alopecia areata requires assessment by a dermatologist and has its own treatment pathways.

Thyroid dysfunction, both underactive (hypothyroidism) and overactive (hyperthyroidism) thyroid, can cause significant hair shedding and sometimes emerges in the postpartum period. Postpartum thyroiditis affects an estimated 5 to 10 percent of women in the year after birth according to ACOG. If hair loss is accompanied by other symptoms such as unusual fatigue, unexpected weight changes, feeling excessively cold or warm, palpitations, or low mood, it is worth asking your GP for a thyroid function test.

Iron deficiency anaemia is another cause of diffuse hair shedding that can be independent of, or run alongside, postpartum telogen effluvium. Low ferritin (stored iron) is particularly associated with prolonged or heavier shedding. Blood loss during delivery and the demands of breastfeeding can deplete iron stores in the months after birth.

You should see your GP if:

Hair loss continues beyond twelve months after birth
You notice distinct bald patches rather than overall thinning
Your scalp is inflamed, itchy, or tender
You have other symptoms that could point to thyroid problems or anaemia
The shedding is so heavy it is affecting your quality of life

What actually helps

The honest answer is that the most powerful thing you can do for postpartum telogen effluvium is wait: this is a self-limiting condition and hair density typically returns to baseline within twelve months regardless of any intervention. That said, there are some evidence-backed approaches that support hair health and avoid making the situation worse.

Nutrition: iron and protein matter most

Adequate nutrition is the area with the best evidence for supporting hair during and after postpartum shedding. The two nutrients most clearly linked to hair loss are iron and protein.

Iron deficiency, even without overt anaemia, is associated with prolonged telogen effluvium. Postpartum women are at elevated risk of low ferritin due to blood loss at delivery and the continued iron demands of breastfeeding. The NHS advises postpartum women to eat iron-rich foods (red meat, lentils, spinach, fortified cereals, beans) and, if blood tests confirm deficiency, to take supplemental iron under medical guidance. Eating foods containing vitamin C alongside iron-rich plant sources helps absorption.

Protein is the structural building block of hair. Hair follicles require adequate dietary protein to produce the keratin that forms the hair shaft. New mothers who are not eating enough protein, whether due to appetite changes, restrictive diets, or the sheer time pressure of caring for a newborn, may experience heavier shedding. Aiming for a balanced intake of protein-containing foods across the day (eggs, dairy, legumes, meat, fish, tofu) supports recovery. The NHS recommends that breastfeeding women eat a varied, nutritious diet and do not restrict calories severely, which supports both milk supply and maternal recovery including hair health.

Gentle handling

Hair that is in the telogen phase and ready to shed will come out. However, the way you handle your hair can affect how much breakage occurs alongside the natural shedding, and can influence how comfortable regrowth is.

Use a wide-tooth comb rather than a fine-bristled brush, particularly on wet hair, which is more fragile
Avoid tight hairstyles such as high ponytails, braids, or buns that pull on the scalp (a style called traction alopecia can develop if tension is consistently applied to already-shedding follicles)
Let hair air-dry where possible, and use a heat protectant if you do use a dryer or heated tools
Be gentle when detangling: start from the ends and work upwards, rather than dragging a comb from root to tip

ACOG notes that mechanical trauma to already-vulnerable follicles can compound shedding, so treating hair gently during the recovery phase is a simple, free, and sensible step.

A supportive routine

Using a gentle, sulphate-free shampoo and a good conditioner reduces tangling and breakage. Washing hair less frequently (every two to three days rather than daily) can reduce the visual impact of shedding, since lost hairs accumulate between washes rather than falling continuously. Some people find that switching to a volumising conditioner or a lightweight leave-in product helps hair look fuller during the thinning phase.

What does not work: unproven claims

The postpartum hair loss space is unfortunately crowded with products and supplements that are marketed with great confidence but lack good clinical evidence. Being aware of these can save money and prevent false hope.

Biotin supplements UNPROVEN
Biotin (vitamin B7) is one of the most heavily marketed supplements for postpartum hair loss. It is true that severe biotin deficiency can cause hair loss, but biotin deficiency is rare in people eating a normal diet. There are no well-designed randomised controlled trials showing that biotin supplementation reduces postpartum telogen effluvium in people who are not biotin-deficient. The FDA has also issued warnings that high biotin doses can interfere with a range of laboratory blood tests, including thyroid function tests and cardiac troponin assays, producing false results. If you are taking biotin and need blood tests, tell your doctor.

Hair growth serums and topical treatments UNPROVEN
Many topical serums are marketed specifically for postpartum shedding, often containing a mix of peptides, plant extracts, caffeine, or low-dose minoxidil. There is limited high-quality evidence for most of these in the context of postpartum telogen effluvium specifically. Minoxidil (the active ingredient in some topical treatments) does have evidence for androgenetic alopecia, but it is not recommended during breastfeeding. Always check with your GP or pharmacist before applying any topical treatment to the scalp while nursing.

Aggressive scalp massage UNPROVEN
Scalp massage is frequently suggested as a way to stimulate hair growth by increasing blood flow to follicles. A small Japanese study suggested a possible effect on hair thickness in healthy men after 24 weeks of daily massage. The evidence does not extend meaningfully to postpartum hair loss, and vigorous massage on a scalp with many hairs in the telogen phase may simply dislodge them earlier. Gentle massage with a lightweight oil is unlikely to cause harm, but it should not be expected to accelerate regrowth.

Expensive protein-based shampoos and conditioners UNPROVEN
Hair shaft-coating products can make hair feel thicker and look fuller, which has cosmetic value. They do not, however, affect the underlying hair growth cycle or speed up follicular recovery from telogen effluvium. A reasonably priced gentle shampoo and conditioner will serve the same function as a premium product making specific postpartum claims.

Supporting yourself emotionally

The physical reality of postpartum hair loss is real, but so is the emotional toll. Body image after birth is a topic that deserves more open conversation than it typically gets. Pregnancy and birth change the body in ways that are significant and sometimes permanent, and hair loss is one of those changes that can feel particularly visible and hard to hide.

It is completely valid to find losing your hair distressing. This is not vanity. Hair is part of identity and self-image for many people, and noticing significant thinning at a time when you are already physically and emotionally depleted is a genuine stressor. Feeling grief about it does not make you ungrateful for your baby or insufficiently focused on what matters. Both things can be true at once.

A few things that some people find helpful during this period:

Choosing hairstyles that minimise the visual impact of thinning, such as soft layers cut by a hairdresser who understands postpartum regrowth, can make a real difference to daily confidence
Talking to others who have been through it. Online communities for new parents often have threads dedicated to postpartum hair loss, and simply knowing that what you are experiencing is both common and temporary can provide genuine comfort
Framing the regrowth rather than the loss: when you start to see the shorter new hairs appearing, many people find it easier to reframe this as visible evidence of recovery rather than continuing to focus on the shedding
If distress about postpartum body changes is significant and affecting your mental wellbeing, it is worth raising with your health visitor or GP. Body image concerns after birth can be a component of postnatal depression and anxiety, both of which are treatable

The most important thing to hold onto is this: postpartum hair loss is temporary. The follicles are not lost. They are resting, and they will resume. Within a year of giving birth, the vast majority of women have returned to their pre-pregnancy hair density, often with no lasting change at all.

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Frequently asked questions

When does postpartum hair loss start and when will it stop?

Postpartum hair shedding typically begins between two and four months after birth and peaks around the four-month mark. For most people it has resolved substantially by six months, and hair is usually back to its pre-pregnancy density by twelve months. If significant shedding continues beyond twelve months, or if you notice patchy loss or scalp changes, speak to your GP to rule out other causes such as thyroid dysfunction.

Is there anything I can take to stop the hair falling out?

There is no supplement or medication with strong clinical evidence for preventing or shortening postpartum telogen effluvium. Biotin is widely marketed but studies have not shown benefit in people who are not biotin-deficient. The most evidence-backed approach is ensuring your overall nutrition is adequate, particularly iron and protein, since deficiencies can prolong shedding. If blood tests reveal low ferritin or iron, correcting that deficiency under medical supervision can help. Speak to your GP before starting any new supplements while breastfeeding.

Should I be worried if I am losing a lot of hair?

Losing more hair than usual in the first few months after birth is normal and expected. However, you should see your GP if the shedding is extremely heavy, if it continues beyond twelve months, if you notice bald patches rather than overall thinning, if your scalp is itchy or inflamed, or if you have other symptoms such as fatigue, weight changes, or feeling cold all the time, which can point to thyroid problems or anaemia.

Will my hair grow back the same as before?

For most people, yes. Postpartum telogen effluvium is a temporary phase and hair density typically returns to pre-pregnancy levels by the time the baby is twelve months old. You may notice shorter regrowth hairs around your hairline as follicles re-enter the growth phase. Texture can feel slightly different for some people during regrowth, but this usually settles. Permanent, significant hair loss from postpartum shedding alone is not expected.