Of 331 new mothers surveyed by researchers at Tokyo Medical and Dental University, 304 said they had lost noticeably more hair after giving birth. That's almost 92%. Most of them first spotted it while washing their hair, and close to three in four said the shedding left them anxious or stressed.

If you're reading this with a shower drain full of hair, that last figure is probably the one that lands. It's also why I want this guide to be practical rather than just soothing. Postpartum shedding is extremely common, and for most women it ends on its own. But "it'll stop eventually" isn't much of a plan, and a fair amount of what gets marketed to new mothers doesn't do what it promises. What follows is where the evidence actually stands in 2026: what helps, what doesn't, roughly when you can expect it to stop, and the signs that something besides ordinary postpartum shedding might be going on.

Why the shedding starts months after the birth

Each hair on your scalp runs on its own clock. It spends roughly 1,000 days growing (the anagen phase), about 10 days transitioning (catagen), and then around 100 days resting (telogen) before it falls out and a new hair starts in the same follicle. Because those clocks are normally staggered, you lose a modest number of hairs every day without ever noticing a change.

Pregnancy disrupts the timing. Elevated hormones, estrogen in particular, hold many follicles in the growth phase longer than usual, which is why so many women find their hair at its fullest late in pregnancy. Then delivery happens and those hormone levels fall within days. The follicles that had been kept growing now move into the resting phase more or less together.

Here's the part that catches people off guard. A resting hair doesn't fall out right away; it sits in the follicle for about three months first. So the shedding shows up well after the birth, often just as life with a newborn has found some kind of rhythm, and the link back to delivery isn't obvious. Dermatologists call this telogen effluvium, and the postpartum form has its own name in the literature: telogen gravidarum. The hair you're losing at month four isn't a sign that something went wrong at month four. It's the delayed end of a cycle that changed course on the day you gave birth.

When does postpartum hair loss stop?

In the Tokyo study, the average woman's shedding started 2.9 months after delivery. It peaked at 5.1 months and was over by 8.1 months. Here's how that tends to unfold:

Time after delivery	What's typically happening
Weeks 0 to 8	Hormone levels drop and many follicles shift into the resting phase, but there's little visible shedding yet
Around month 3	Shedding begins for most women
Months 4 to 6	Usually the heaviest stretch
Months 6 to 12	Shedding tapers off, and short new hairs often appear along the hairline and part
Past month 12	Not the expected course, and worth a medical evaluation

Averages hide a lot of spread, though. The end date in that study varied by about 2.6 months in either direction, so a woman whose shedding settles at month eleven is still squarely in normal territory. Regrowth also trails behind the shedding. Those wispy, flyaway "baby hairs" at your temples are new hairs, and they mean recovery has started, even though it can take many more months before your ponytail feels like itself again.

Two things in the Tokyo data were linked with more hair loss. Women who'd had preterm labor were more likely to report it, and so were women who breastfed longer. Compared with women who stopped nursing before six months, those who stopped between six and twelve months had roughly six times the odds of postpartum hair loss once other factors were accounted for. The authors suspect estrogen is the connection, since breastfeeding keeps estrogen levels suppressed.

I'd hold that finding loosely. It comes from a single questionnaire, the researchers themselves flag a likely sampling bias, and it shows an association rather than a cause. Nothing in it is a reason to change how you feed your baby. What it does offer is a plausible explanation if your shedding seems to run a little longer than a friend's did.

What actually helps

No treatment has been shown to stop a hair that's already entered the resting phase from falling out. What you can influence is everything around that fact: whether a second problem is hiding underneath the shedding, how much breakage you add on top of it, and the conditions your new growth comes in under.

Ruling out the look-alikes

According to the American Thyroid Association, postpartum thyroiditis affects roughly 5 to 10% of women in the United States. It usually shows up in the first year after delivery, and its underactive phase can cause hair loss of its own, along with fatigue, feeling cold, and low mood that are easy to write off as normal new-parent exhaustion. Iron is the other usual suspect, since blood loss during delivery can leave stores depleted.

Neither of these is something you can sort out by looking in the mirror. A simple blood panel can, though, and it's a reasonable thing to ask your OB or primary care doctor about, especially if your shedding is heavy, starts unusually early, or comes alongside symptoms like the ones above. If you take a hair supplement containing biotin, mention it before the blood draw. I'll explain why further down.

Taking tension off the follicles

Of 200 women evaluated for postpartum hair loss in a 2024 study in the Journal of Clinical and Aesthetic Dermatology, more than a third (34.5%) also showed signs of traction alopecia, hair loss caused by repeated pulling. That's not surprising when you consider how new parenthood tends to go: the tight, high ponytail that keeps hair out of a baby's grip, worn day after day, often slept in.

So the most useful change here costs nothing. Wear your hair looser and lower when you can, and switch up where the tension sits so the same spot isn't pulled every day. Soft scrunchies are kinder than thin elastics. On the days you do style it, go easier on high heat, because the hair you have right now is the hair you're trying to keep, and breakage on top of shedding makes everything look thinner than it really is.

Supporting regrowth from the inside

New mothers are often running on very little, nutritionally and otherwise. The follicles that are restarting their growth phase need the same raw materials as the rest of your body, which means adequate protein, iron, and calories, and that matters even more if you're breastfeeding.

If your doctor has you continuing a prenatal vitamin, that already covers a lot of the basics. Before adding anything on top of it, particularly while you're nursing, run it past your OB or your baby's pediatrician. No supplement has been shown to stop postpartum telogen effluvium, so the realistic goal is to avoid shortfalls, not to force growth.

Minoxidil, when there's more going on than shedding

This is where the 2024 study above becomes important. Of those 200 women, only 9.5% had postpartum shedding alone. More than half (56%) had shedding plus early female pattern hair loss (androgenetic alopecia), and another 28% had shedding, pattern loss, and traction alopecia together. Postpartum shedding, in other words, often unmasks a pattern that was quietly developing already.

That matters because topical minoxidil, sold over the counter at 2% for women, is FDA-approved for exactly that pattern: mild-to-moderate androgenetic hair loss. It isn't approved for telogen effluvium on its own. If your part is widening or your crown is visibly thinner and the shedding has passed its peak, it's a fair question to raise with a doctor.

Breastfeeding complicates the decision, and the sources don't fully agree. The NIH's LactMed database considers topical minoxidil acceptable once breastfeeding is established, with one firm caveat: keep the baby from touching treated skin or hair, since infants can absorb it and develop excess hair growth. Product labeling in some countries is more conservative and advises against use while nursing. Oral minoxidil, which has become far more widely prescribed for hair loss in the last few years, gets a more cautious note from LactMed, especially when nursing a newborn. Make this call with your doctor rather than on your own. It's also worth knowing that minoxidil can cause a temporary increase in shedding in its first weeks, which can be discouraging to see during a stretch when you're already losing hair.

Time, and knowing what to watch for

For women whose shedding really is just postpartum telogen effluvium, waiting is a legitimate approach, not a cop-out. The follicles aren't damaged. They're cycling back, and in the large majority of women the shedding ends within the first year. What makes waiting work is knowing which signs mean you should stop waiting, which are laid out in the section below on when it might be something more.

What doesn't help (or hasn't earned its reputation)

Megadose biotin. True biotin deficiency is rare, and outside of it there's little good evidence that extra biotin does much for hair. There's also a practical problem specific to this period. In 2017 the FDA warned, and updated the warning in 2019, that high-dose biotin can interfere with certain lab tests and produce falsely high or falsely low results. Thyroid tests are among those affected, and that's exactly the blood work you might need if your shedding isn't following the usual course. Many hair, skin, and nail supplements carry several thousand micrograms per serving, far above the roughly 30 micrograms adults need in a day.

Hormone therapy, sometimes suggested on the logic that falling estrogen started the whole thing, is another one. An earlier review cited by the Tokyo researchers concluded that it wasn't effective for postpartum hair loss, and it brings risks of its own for women who've recently given birth.

What about washing less? It feels like it should help, since the hair comes out in the shower. But those hairs have already detached from the follicle. Skipping washes just means you see them all at once, in a bigger and more upsetting clump, on the day you finally do.

Cutting it all off. A shorter cut won't change how many hairs your follicles release, because the shedding happens at the root. That said, if lighter, shorter hair makes the thinning less visible and easier to manage with a baby, that's a perfectly good cosmetic choice. Just go in knowing it's styling, not treatment.

Weaning early to protect your hair is the last one, and the Tokyo breastfeeding data is the reason I raise it. The association is real in that study, but it's one study, and the shedding resolves either way. Feeding decisions belong to you and your baby's doctor, made on their own merits.

Is it really just postpartum shedding?

Not everyone accepts postpartum telogen effluvium as a distinct condition. A 2016 review in Skin Appendage Disorders went as far as calling it a "fallacy," arguing that the evidence for how common it is had been surprisingly thin. The Tokyo study was designed partly in response, and its 92% figure suggests the experience itself is very real. But the skeptics had a point worth keeping: in a lot of women, postpartum shedding sits on top of something else.

The 2024 study found that the longer a woman's postpartum shedding lasted, the more likely she was to show signs of pattern hair loss as well. Age and number of previous pregnancies tracked the same way. So the signs to take seriously are the ones that don't fit a temporary, all-over shed:

• shedding that's still going strong past the one-year mark
• a part that keeps widening, or thinning concentrated on the crown or temples
• patches of hair loss, or smooth bald spots
• scalp itching, burning, pain, or scaling
• fatigue, weight change, palpitations, or feeling cold along with the hair loss
• a strong family history of thinning hair

Any of these is a reason to see a dermatologist or your doctor rather than waiting it out. I'd add one more that isn't on most lists: if the shedding is affecting your mood in a way that's hard to shake. Research from the same Tokyo group found that heavier postpartum hair loss was associated with higher postpartum anxiety, and that's worth mentioning to whoever is looking after you.

Where MDhair fits

I'll be direct about this, since honesty is the whole point of a guide like this one. None of our products will stop postpartum shedding that's already underway, and neither will anyone else's. What we can do is support the hair that's growing back and the hair you're working to keep.

For the months after the shedding peaks, the products I'd point to are built around supporting the hair that's coming back. Our Marine Collagen ($48) pairs marine collagen peptides with hyaluronic acid and vitamin C. Restore Supplements ($42) bring together more than 20 vitamins and plant-based complexes aimed at hair strength and nutrient replenishment, and the two work comfortably side by side as the "inside" half of a postpartum routine. Neither one is a hormonal product. Still, if you're breastfeeding, show your OB or your baby's pediatrician the full ingredient label before you start, the way you would with any supplement in these months. And if there's biotin in anything you take, let the lab know before a blood test.

Restore Serum ($44) covers the outside. It's a leave-on scalp serum from our bond-building Restore line, so it helps strengthen strands against the breakage that makes postpartum thinning look worse, and it's also one of our DHT-blocker formulations, with saw palmetto among its botanicals. That second part makes it most relevant if your shedding has unmasked some early pattern thinning, the widening part or thinner crown described in the minoxidil section, and you'd like a non-drug topical option. Saw palmetto does have hormonal activity, though, and guidance on it during breastfeeding is mixed: some references say topical use away from the chest poses little likely risk, while others advise nursing mothers to avoid it altogether, particularly taken by mouth. So if you're still nursing, this is one to clear with your doctor first, or to keep in reserve for after you've weaned.

If you're not sure what you're dealing with, our free AI hair and scalp assessment starts with a short quiz and a scalp photo, and every MDhair regimen comes with unlimited chat access to our dermatologist team. That matters here because it can help flag the patterns described above, like a widening part, that suggest more than postpartum shedding.

For context on the evidence behind our approach: in the six-month clinical trial my team and I ran, published in the Journal of Drugs in Dermatology in 2025, MDhair's personalized regimen was compared with the leading hair loss supplement brand. At 90 days it showed about 2.8 times the improvement in hair growth. Hair quality improved about 3.0 times as much. That trial looked at hair loss broadly, not postpartum shedding specifically, so treat it as evidence for the approach rather than a promise about any one person's result.

A word on what's regulated and what isn't, because it's easy to lose track of. Of everything mentioned in this article, minoxidil is the only one with OTC drug status, and that approval covers one thing: mild-to-moderate androgenetic hair loss. Our serums, shampoos, supplements, and Marine Collagen are cosmetic and supplement products. They aren't intended to diagnose, treat, cure, or prevent any disease.

Supplements in particular haven't been evaluated by the FDA. During the postpartum months, and especially while you're nursing, the safest habit is a simple one: check with your doctor before adding anything new. And if any product irritates your scalp or skin, stop using it rather than pushing through.

Frequently asked questions

Is postpartum hair loss normal?

Yes. In a 2023 survey of 331 new mothers, about 92% reported some degree of it. It usually starts around three months after delivery and isn't a sign that anything went wrong during pregnancy or birth.

Does postpartum hair grow back?

In most women, it does. The follicles aren't damaged; they've just cycled into rest at the same time. Short new hairs along the hairline are usually the first visible sign, often between six and twelve months after delivery. If you're not seeing regrowth by the end of the first year, or if your part keeps widening, it's worth having a dermatologist look for an underlying pattern.

Can I use minoxidil while breastfeeding?

Sources differ. LactMed considers topical minoxidil acceptable once breastfeeding is established, as long as the baby doesn't come into contact with treated skin, while some product labels advise against it. Oral minoxidil calls for more caution. Talk it through with your doctor.

Can you prevent postpartum hair loss?

Not in any proven way, since it's driven by the hormonal shift after delivery. Gentle styling, good nutrition, and checking your thyroid and iron if symptoms suggest it can keep it from being worse than it needs to be.

The bottom line

Postpartum shedding is common, temporary for most women, and almost always over within a year. You can't stop the hairs that are already on their way out, but you can rule out thyroid and iron problems, take tension off your hairline, skip the megadose biotin, and keep an eye out for the signs that point to something more. If the shedding outlasts your baby's first birthday, or your part keeps getting wider, that's the moment to get it looked at.

Dr. Yoram Harth is a board-certified dermatologist and Co-Founder and Chief Medical Officer of MDalgorithms Inc., the company behind MDhair and MDacne. A magna cum laude graduate of Tel Aviv University's Sackler School of Medicine, he trained in dermatology at Rambam Medical Center and completed a research fellowship at Columbia-Presbyterian Medical Center in New York. His work spans phototherapy, photodynamic therapy, and AI-personalized skin and hair care.

Sources

1. Hirose A, Terauchi M, Odai T, et al. Investigation of exacerbating factors for postpartum hair loss: a questionnaire-based cross-sectional study. Int J Womens Dermatol. 2023;9(2):e084. doi:10.1097/JW9.0000000000000084
2. Hirose A, Terauchi M, Odai T, et al. Postpartum hair loss is associated with anxiety. J Obstet Gynaecol Res. 2024;50(12). doi:10.1111/jog.16130
3. Galal SA, El-Sayed SK, Henidy MMH. Postpartum telogen effluvium unmasking additional latent hair loss disorders. J Clin Aesthet Dermatol. 2024;17(5):15-22. jcadonline.com
4. Grover C, Khurana A. Telogen effluvium. Indian J Dermatol Venereol Leprol. 2013;79:591-603. ijdvl.com
5. Mirallas O, Grimalt R. The postpartum telogen effluvium fallacy. Skin Appendage Disord. 2016;1(4):198-201. doi:10.1159/000445385
6. Eastham JH. Postpartum alopecia. Ann Pharmacother. 2001;35:255-258. doi:10.1345/aph.10153
7. American Thyroid Association. Postpartum Thyroiditis. thyroid.org
8. Drugs and Lactation Database (LactMed). Minoxidil. National Library of Medicine. ncbi.nlm.nih.gov
9. U.S. Food and Drug Administration. UPDATE: The FDA warns that biotin may interfere with lab tests: FDA safety communication. 2019. fda.gov
10. Bhardwaj V, Rodgers N, Harth O, Harth Y. Artificial intelligence-based personalization of treatment regimen for hair loss: a 6-month clinical trial. J Drugs Dermatol. 2025;24(3):233-238. doi:10.36849/JDD.8611

Find the most effective hair growth products for you by taking the free hair assessment.