Postpartum hair loss
Handfuls of hair in the shower a few months after having a baby is one of the most frightening things new mothers experience. In the great majority of cases it is a predictable physiological event that resolves on its own.
During pregnancy, high oestrogen keeps an unusually large proportion of hair follicles in their growing phase. Hair feels thicker because you are shedding less than normal, not growing more. After delivery, oestrogen falls sharply, and all those follicles that were held in the growth phase enter the resting phase together — then shed together, roughly two to three months later.
This is telogen effluvium. It is not a disease, and it is not caused by anything you did or did not do.
The timeline
| Timing | What happens |
|---|---|
| 2–4 months post-delivery | Shedding begins, often abruptly and heavily |
| 4–6 months | Peak shedding. This is when most women come to see me, frightened. |
| 6–9 months | Shedding slows and stops. Short regrowth appears, often as fine hairs along the hairline. |
| 9–12 months | Density noticeably improving |
| 12–18 months | Usually back to your baseline |
Those short new hairs standing up around the hairline and parting are a good sign, not a new problem — they are regrowth.
Three things worth ruling out
This is where a check is genuinely useful
- Iron deficiency. Extremely common after pregnancy and delivery, especially with blood loss or a short gap between pregnancies. Low ferritin prolongs and worsens shedding, and it is easily corrected. A normal haemoglobin does not exclude it — ask for ferritin.
- Postpartum thyroiditis. Affects a meaningful minority of women after delivery and causes hair loss along with fatigue, mood changes, palpitations or weight change. Easily tested, and often missed because the symptoms are attributed to new motherhood.
- Vitamin D and B12 deficiency, both common and worth correcting.
Also worth mentioning: postpartum depression and anxiety are common, frequently under-recognised, and can present alongside hair loss and fatigue. If you are struggling, please raise it — with me or with any doctor. It is treatable, and it matters more than the hair.
When it is not simple postpartum shedding
See a dermatologist if:
- Shedding continues beyond twelve months
- You develop distinct bald patches rather than diffuse thinning — that suggests alopecia areata
- The parting is widening and not recovering — pattern hair loss can be unmasked by pregnancy. See female pattern hair loss.
- There is hair loss at the front and temples specifically — often traction alopecia from tight buns, very common in the postpartum months when hair is tied back constantly
- The scalp is red, scaly, painful or itchy
- Regrowth is not appearing by nine months
What helps, and what to skip
Helpful
- Correct any deficiency. Ferritin, thyroid, vitamin D and B12. This is the highest-value intervention.
- Continue your prenatal vitamin while breastfeeding, or as your obstetrician advises.
- Adequate protein and calories. Sleep-deprived new mothers frequently under-eat, and hair is metabolically expendable — the body deprioritises it first.
- Loose hairstyles. Avoid the tight bun. Traction loss on top of telogen effluvium is very common in this period and is preventable.
- Gentle handling. A wide-tooth comb, minimal heat.
- Treat scalp problems — dandruff often flares postpartum.
Not needed
- Minoxidil, usually. This resolves on its own, so treatment is not routinely required. It is also not recommended while breastfeeding — discuss with your doctor rather than starting it yourself.
- Expensive hair supplements beyond correcting a documented deficiency. Note that biotin interferes with thyroid blood tests, which is unhelpful when you need those tests to be accurate.
- Special shampoos. They cannot influence a follicular cycle.
- Cutting your hair. It does not reduce shedding — the follicle sheds regardless of length. Shorter hair simply makes the volume look less dramatic, which some women find genuinely helpful psychologically.
What I tell new mothers
This is temporary, it is not your fault, and it is not a sign that something is wrong with you. Get your ferritin and thyroid checked because those are the two things that would prolong it. Then be patient with a process that has a predictable end.
And if it has been more than a year, or there are bald patches, or the parting is not recovering — that is worth looking at properly rather than continuing to wait.
Frequently asked questions
Shedding usually begins two to four months after delivery, peaks at four to six months, slows by six to nine months, and density is generally back to baseline by twelve to eighteen months.
No. It is telogen effluvium, a temporary shift in the hair cycle caused by the drop in oestrogen after delivery, and it recovers on its own. If shedding continues beyond twelve months, or bald patches appear, that needs assessment.
Ferritin (not just haemoglobin), thyroid function, vitamin D and B12. Iron deficiency and postpartum thyroiditis are the two treatable causes that prolong shedding, and thyroid problems are often missed because the symptoms are attributed to new motherhood.
It is not routinely recommended while breastfeeding, and postpartum shedding resolves on its own so treatment is usually unnecessary. Discuss it with your doctor rather than starting it yourself.
No. The follicle sheds regardless of hair length. Shorter hair simply makes the shed volume look less alarming, which some women find helpful, but it does not change the process.
That pattern often suggests traction alopecia from tight buns and ponytails, which is very common in the postpartum months when hair is tied back constantly. It is preventable, and reversible if addressed early.
