Hormonal hair loss in women follows three main life stages, each with a different cause and outlook. After pregnancy, shedding is temporary and most people are back to normal fullness by the baby's first birthday. In perimenopause, a temporary shed and early pattern thinning often overlap, and after menopause, slow female pattern thinning is the most common change and is managed long term.
This guide gives the key facts for each stage and links to our full article on each one.
Key takeaways
- Estrogen helps keep hairs in the growth phase, which is why hair changes track pregnancy, perimenopause and menopause.
- Postpartum shedding starts about 2 to 4 months after birth, often peaks around month 4, and usually resolves by the baby's first birthday.
- Perimenopause can bring a temporary shed, the first signs of pattern thinning, or both at once.
- After menopause, female pattern hair loss is common: 52.2% of postmenopausal women in one clinical study had it, mostly at a mild stage.
- Ferritin, thyroid function and vitamin D are worth checking at every stage.
Hair loss by life stage at a glance
| Stage | Typical cause | Timeline | What helps | Read more |
|---|---|---|---|---|
| After pregnancy | Postpartum shedding (telogen effluvium) as estrogen falls after birth | Starts 2 to 4 months after birth, peaks around month 4, back to normal by the first birthday | Gentle hair care, patience, iron and thyroid check if needed | Postpartum hair loss |
| Perimenopause | Shedding from triggers such as low iron, plus early pattern thinning | Sheds settle within about 6 months; pattern thinning builds over years | Blood tests, fixing triggers, a consistent scalp routine | Perimenopause hair thinning |
| After menopause | Female pattern hair loss as estrogen settles at a low level | Slow change over years | Dermatologist assessment, minoxidil or other options, long-term routine | Menopause hair loss |
Why does hair fall out after pregnancy?
High estrogen during pregnancy keeps more hairs in the growth phase than usual. After birth, estrogen drops and many of those hairs move into the resting phase together, then shed a few months later.
A dermatology review notes that higher estrogen promotes the anagen growth phase, an effect seen clinically in pregnancy and in the shedding that follows birth (Kamp 2022). According to the American Academy of Dermatology, shedding usually peaks about four months after giving birth, and most women see their hair return to normal fullness by their child's first birthday.
No device or special treatment is needed for postpartum shedding. Gentle handling, loose hairstyles and a balanced diet are enough for most people. If your hair and scalp feel dry, a pre-wash treatment with the Folliq 100% Unrefined Batana Oil is a calm, simple way to care for them: massage a small, warmed amount into scalp and hair and leave it on for at least 20 minutes before you wash. If shedding is still heavy after a year, or your part looks wider than before pregnancy, see a doctor; postpartum shedding can make underlying pattern thinning visible. Our full guide to postpartum hair loss covers the timeline and when to check iron and thyroid.
What changes in perimenopause?
In perimenopause, estrogen and progesterone fluctuate rather than fall smoothly, and two hair changes often overlap. One is a temporary shed triggered by low iron from heavier periods, illness, stress or a medication change; the other is the start of female pattern thinning in follicles sensitive to androgens.
The difference is in the timeline and pattern. A shed is sudden and diffuse and usually settles within about 6 months; pattern thinning shows as a slowly widening part with the front hairline kept. Our guide to telogen effluvium explains how shedding works, and perimenopause hair thinning compares the two side by side.
Why does thinning continue after menopause?
After menopause, a smaller share of hairs is in the growth phase at any time, and female pattern hair loss becomes the most common cause of thinning. It changes slowly, which leaves time to plan.
In a study of 178 postmenopausal women aged 50 to 65, 52.2% had female pattern hair loss, and nearly three quarters of those cases were mild, Ludwig grade I (Chaikittisilpa 2022). Our pillar guide to female pattern hair loss explains the Ludwig stages and the evidence for each option, and menopause hair loss: what changes and what helps sets out a long-term plan. For how thinning looks in both men and women from midlife on, see hair thinning after 45.
For perimenopause and the years after, a steady scalp routine is easy to build around. The Folliq Red Light Scalp Massager combines red light at 660 nm, sonic massage and a refillable 12 ml cartridge for your hair oil or serum in one 6-minute session, used 3 to 5 times a week.
Which blood tests help at every stage?
Ferritin (iron stores), TSH (thyroid function) and vitamin D are worth checking at any stage, because low iron and thyroid changes are common after pregnancy and in midlife. Ask for the ferritin number specifically, since a normal blood count can hide low iron stores.
If you take a hair supplement with biotin, tell your doctor before blood tests, because high doses can distort some results, including thyroid tests. Our guides to blood tests for hair loss and nutritional deficiencies linked to hair loss explain what to ask for.
When to see a doctor
See a doctor or dermatologist at any stage if:
- Shedding lasts longer than 6 months, or postpartum shedding is still heavy after a year.
- Hair loss is sudden or comes out in patches.
- Your front hairline or eyebrows are receding.
- You have scalp pain, burning, redness or scaling.
- Hair loss comes with fatigue, weight change, feeling cold or irregular or heavy bleeding.
FAQ
Which hormones cause hair loss in women?
Falling estrogen is the common thread: after birth, in perimenopause and after menopause. Androgens such as DHT drive pattern thinning in follicles that are genetically sensitive, and thyroid hormones affect shedding at any age.
How long does postpartum hair loss last?
Shedding usually starts 2 to 4 months after birth, peaks around month 4, and most people are back to normal fullness by the baby's first birthday. If it continues beyond that, ask your doctor to check iron and thyroid and to look for pattern thinning.
Is hormonal hair loss permanent?
Postpartum shedding and most triggered sheds are temporary. Female pattern hair loss is long term, but treatment can slow it and often improve density, especially when started early.
Can you have postpartum shedding and pattern thinning at the same time?
Yes. A postpartum shed can reveal pattern thinning that was building quietly. If your part stays wider once shedding has settled, a dermatologist can confirm what is going on.
Folliq products are cosmetic scalp-care products, not medical devices or medicines, and are not intended to diagnose, treat, cure or prevent any disease. The studies discussed here used clinical devices and preparations, which is why every Folliq product comes with 90 days to try it for yourself. If your hair loss is sudden, patchy or painful, see a dermatologist.
References
- American Academy of Dermatology. Hair loss in new moms. aad.org
- Kamp E, Ashraf M, Musbahi E, DeGiovanni C. Menopause, skin and common dermatoses. Part 1: hair disorders. Clinical and Experimental Dermatology. 2022. PubMed 35796569
- Chaikittisilpa S, Rattanasirisin N, Panchaprateep R, et al. Prevalence of female pattern hair loss in postmenopausal women: a cross-sectional study. Menopause. 2022. PubMed 35357365