Receding temples
The hairline moves back at the corners first, deepening into an M shape. Usually the earliest visible stage.
Male pattern baldness is an inherited sensitivity of the hair follicle to a hormone called DHT. Affected follicles shrink with every growth cycle, so the hair they make gets shorter and finer until it stops coming through. It begins at the temples and crown, spares the sides and back, and progresses over years rather than falling out suddenly.

Identifying the type matters, because each is treated differently.
The hairline moves back at the corners first, deepening into an M shape. Usually the earliest visible stage.
The whorl at the back opens out and scalp shows through under overhead light — often noticed first in a photograph somebody else took.
Temples and crown thinning together and gradually meeting across the top. The sides and back stay, because those follicles are not DHT-sensitive.
Loss spread evenly with the hairline intact. This is not the usual male pattern and needs assessment — thyroid disease, iron deficiency and a recent illness all look like this.
Scalp examination and, where indicated, blood work for iron, vitamin D, B12 and thyroid function. Two things often run together — pattern loss underneath and a shedding trigger on top — and only one of them is corrected by a blood test.
Prescribed topical and, where appropriate, oral treatment aimed at slowing miniaturisation and thickening the hair still growing. It has to be sustained: the gain is generally lost over the months after stopping, and that is said plainly before anything is started.
These support a medical plan in early to moderate thinning, where follicles are miniaturised rather than gone. They do nothing for scalp that has been completely bald for years, and a clinic offering them for that is selling you a course you do not need.
Keeping hair is far easier than recovering it. Once an area has been bare a long time there are no follicles left to respond, and the honest conversation then is about transplantation elsewhere rather than medical treatment here.
No treatment reverses it and nothing cures it. What treatment realistically does is slow the progression and thicken hair that has miniaturised but is still growing. Scalp that has been bald for years has no follicles left to respond, which is why the stage you come in at matters more than the product you choose.
Any time after puberty. Starting in the late teens or twenties is common where there is a strong family history, and early onset usually means a longer progression — which is an argument for being assessed rather than for waiting to see.
Evidence suggests it can help selected patients with early to moderate thinning, used alongside medical therapy rather than instead of it. Response varies between people, and it is reviewed on photographs before a course is continued.
Generally yes. Pattern hair loss is progressive, so treatment holds it rather than fixing it, and hair kept by treatment is usually shed over the months after stopping. That is worth knowing before you start, not afterwards.
This page is educational and does not replace an in-person consultation. Medical disclaimer · How we write our content