Female Hair Loss: The Causes Doctors Check, and How Each Is Treated

In men, one cause — androgenetic pattern loss — explains the overwhelming majority of thinning, which is why male hair loss advice is simple. In women the list is longer and the causes overlap. Female-pattern hair loss exists and is the most common single diagnosis, but a large share of women who shed are dealing with telogen effluvium (diffuse shedding after a trigger), low iron stores, thyroid disease, polycystic ovary syndrome, postpartum change, the hormonal shift of menopause, traction from hairstyles, or an inflamed scalp — frequently two or three at once.

The practical consequence is that a woman cannot be treated from a product label. The first job is to work out which of these causes applies, because treating the wrong one wastes the months in which follicles respond most readily, and because several of the causes are medical conditions worth finding for their own sake.

Each cause has a characteristic pattern and history. A doctor uses those, plus a scalp examination and selective blood tests, to separate them.

If you remember one thing from this guide, make it this. Female-pattern hair loss thins the top of the scalp — the parting widens, the crown shows more skin in overhead photographs — while the hairline and the back stay relatively dense. It creeps over years and is driven by follicle sensitivity to androgens, often inherited. Telogen effluvium, by contrast, is shedding: hairs fall from everywhere, the drain and brush fill up, and it starts two to four months after something pushed many follicles into their resting phase at once. It is alarming but usually temporary.

The two can coexist, and shedding frequently unmasks pattern loss that was already present but unnoticed. That is why a woman who is 'just shedding after the baby' still benefits from an examination: the shedding will settle on its own, but the parting that has quietly widened will not.

During pregnancy, high oestrogen holds more hairs than usual in their growing phase, which is why hair often looks thicker in the third trimester. After delivery the hormones reset, the held-back hairs enter their resting phase together, and two to four months later they fall together. The shedding can be dramatic — handfuls in the shower — and it is one of the commonest reasons new mothers seek help. For most women it peaks around month three or four and recovers by six to twelve months without treatment.

What a consultation adds is a check for the things that change that story: iron stores, which are commonly depleted after delivery and slow recovery; thyroid function, which can shift after pregnancy; and the parting, in case an underlying pattern has been unmasked. Breastfeeding mothers are advised specifically on which therapies are and are not appropriate, which is one reason this is a conversation with a doctor rather than a purchase.

Trigger-related shedding is supported rather than medicated: the trigger has usually passed, iron and thyroid are corrected where low, nutrition is addressed, and a review at three to six months confirms recovery. Iron deficiency, thyroid disease and polycystic ovary syndrome are treated as the medical conditions they are, and hair recovery follows over months. Scalp conditions are treated medically — a cosmetic scalp facial does not reach them. Traction loss is reversed early by changing the styling habit; left for years it scars and becomes permanent.

Female-pattern hair loss is managed with doctor-prescribed therapy chosen for women. Topical minoxidil is the usual mainstay; oral options such as spironolactone or low-dose oral minoxidil are considered individually, weighing age, plans for pregnancy and medical history — several medicines used for men are not appropriate for women who are or may become pregnant, which is why the male playbook disappoints. Where regenerative options such as PRP are available (they are offered at some clinics and not others), they are an add-on for pattern loss with living follicles, not a treatment for shedding with a medical cause. Everything is reviewed with standardised photographs at three and six months.

DrPlus assesses women's hair loss at three Singapore clinics — Tanjong Pagar, East Coast and Novena — with diagnosis-first medical care, and at the Johor Bahru clinic in Iskandar Puteri, where PRP and microneedling are also available for suitable women with pattern loss. The assessment is the same in both markets: causes checked in order, blood tests only where they will change the plan, and a written plan and quote before anything starts. Results vary by individual.