Postnatal
Weaning, and the second shed nobody mentions
Most women are warned about the shed that arrives three months after the birth. Almost nobody is warned about the one that can arrive when they stop breastfeeding — sometimes a year or more later, sometimes worse than the first.
Why feeding holds the hair
Breastfeeding keeps prolactin high and oestrogen relatively suppressed but stable. For many women that stability holds the follicles in a steady, if slightly slower, rhythm. Some women shed heavily while feeding; many don’t, and assume they got away with it.
Weaning changes the hormonal picture again — prolactin drops, cycles restart, oestrogen swings before it settles — and a second wave of follicles is pushed into rest at once. Two to three months after the last feed, that wave lets go. It looks, and feels, exactly like the postnatal shed.
What is normal
A second shed that starts around two to three months after weaning, peaks over a few weeks, and eases within three to four months is the normal pattern. The follicles are cycling, not failing. Iron is the one thing worth checking at this point, because feeding draws on stores that pregnancy already depleted.
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Two things should change your reading of it. The first is duration: a shed that is still heavy six months after weaning is no longer the weaning shed. The second is where the hair comes back — or doesn’t. If the corners of the hairline or the parting are visibly thinner after the shed has eased, follicles have gone quiet rather than simply cycled, and that is the pattern the rest of this site is about.
The shed is the hormones moving. What is left after it is the follicles deciding whether to restart.
The overlap with your thirties
For women who wean at 36, 38, 40, the second shed lands on top of the slow hormonal decline that has already begun. That is why it so often seems worse than the first, and why it is the one that does not fully come back. It is not two separate problems; it is one follicle being asked to recover in a harder environment.
If your youngest is under a year and you weaned recently: wait, check iron, photograph the parting once a month. If it has been longer than that and the thinning has stayed, read the pattern and take it from there.
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Twelve questions. We tell you what we think is going on for you, and we say so if it is something a GP should see first.
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