Hair thinning

Hair thinning is one of the most quietly devastating parts of menopause, and one of the least talked about. Up to half of people notice real hair changes by 50. It's rarely dramatic clumps in the brush. It's a part that keeps widening, a ponytail that keeps shrinking, more scalp in every photo. Most causes are treatable. None of them are 'you should have used a different shampoo.'

Hair is shockingly responsive to hormones, stress, sleep, iron, thyroid and protein. Midlife touches almost all of those at once.

Estrogen falls; relative androgen effect rises. Estrogen keeps hair in the growing phase longer. As it drops, the hair cycle shortens. Meanwhile circulating androgens stay relatively constant, so their effect on hair follicles becomes proportionally stronger, driving female-pattern thinning at the crown and part.

Telogen effluvium: diffuse shedding 2 to 3 months after a stressor. Surgery, illness, big weight loss, severe stress, COVID, postpartum, certain medications and crash diets all push a wave of follicles into the shedding phase. The shed shows up months later. Usually self-limiting once the trigger is gone.

Iron, thyroid and B12 are common reversible causes. Diffuse shedding can prompt investigation for iron deficiency or thyroid disease when your history suggests them. A scalp examination helps distinguish causes; not every pattern needs the same blood tests.

Frontal fibrosing alopecia is rising and often missed. A specific scarring alopecia mostly affecting postmenopausal women, presenting as a slowly receding hairline and loss of eyebrows. Once scarring happens, hair doesn't regrow, so early diagnosis matters. Worth a dermatology referral if your hairline is moving back.

Texture changes too, finer, drier, slower-growing. Even before noticeable thinning, many people notice their hair feels different, finer strands, less shine, slower growth. This is the hair cycle shortening; it's not damage and it's not your fault.

Start with assessment of the pattern and scalp, then discuss tests or treatment that fit. Supplements can't establish the cause.

Ask whether targeted tests would help. Iron or thyroid tests may help if deficiency or thyroid disease is suspected. There's no universal ferritin target, vitamin panel or promise that correcting a blood result will resolve every type of hair loss.

Topical minoxidil, works, but you have to keep using it. 5% minoxidil applied once daily has the strongest evidence for female-pattern hair loss. Takes 4 to 6 months to see anything; if you stop, you lose the gains. Available over the counter as Rogaine/Regaine. Foam is less greasy than liquid.

Oral minoxidil at low dose, increasingly prescribed. Low-dose oral minoxidil prescribed off-label by dermatologists has growing evidence for female-pattern hair loss and is often more practical than the topical form for people juggling work and time. Discuss with a dermatologist who treats hair, they'll set the dose.

Menopausal hormone therapy (MHT), often called HRT, modest direct effect, useful indirect ones. Evidence for MHT directly improving hair is mixed. But it stabilizes estrogen and often improves sleep, mood and stress, all of which influence hair. Worth raising as part of the broader menopause conversation, not as a hair drug.

Spironolactone for androgen-driven thinning. Anti-androgen medication with reasonable evidence for female-pattern hair loss, prescribed off-label. Useful when bloods or pattern suggest androgen contribution. Needs medical supervision and contraception (not safe in pregnancy).

Eat enough, especially protein and calories. Hair shuts down quickly when the body senses scarcity. Crash diets, very low calorie eating and inadequate protein (under 1 g/kg/day) are common hidden contributors. Aim for 25 to 30 g protein at each meal.

Be gentle with what you have. Tight ponytails, hot tools daily, harsh dyes and aggressive brushing all accelerate breakage on top of any underlying loss. Looser hairstyles, lower heat, gentler detangling. None of this regrows hair, but it stops you losing more.

Treat the stress, sleep and inflammation underneath. Hair is one of the first systems to power down when the body senses chronic stress, short sleep or systemic inflammation. A daily decompression practice, a real bedtime, an anti-inflammatory eating pattern and cutting alcohol back all support whatever else you're trying (minoxidil, MHT, spironolactone). The follicle responds to the whole picture, not just the topical.