Why Men Go Bald and Women Don't: A Guide to Hair Loss and the Sexes
Last reviewed on 12 July 2026. We review our treatment guides every six months to keep them accurate.
It is one of the most familiar differences between the sexes: men go bald far more visibly, and far more often, than women do. Most people recognise male pattern baldness on sight, the receding hairline and the thinning crown, yet women very rarely lose their hair in the same way. This guide explains why. The short answer is a hormone called dihydrotestosterone (DHT) acting on hair follicles that are genetically prone to respond to it, but the fuller picture is more interesting, and less fatalistic, than the myths that surround the subject.
Below we look at what actually drives male pattern hair loss, why women are usually affected differently and seldom go bald like men, why some men keep their hair for life, and where the common beliefs about baldness are wrong, including the idea that it comes only from your mother's father, or that a high testosterone level or wearing hats is to blame.
For a plain, regularly updated overview of hair loss in both men and women, the NHS hair loss page is a reliable place to start. Whatever you read, it is always worth seeing a GP to understand the cause of any hair loss before deciding what, if anything, to do about it, as other conditions can look similar.
The real cause: DHT and an inherited sensitivity
Pattern baldness happens when DHT, made from testosterone by 5-alpha-reductase, binds and gradually shrinks follicles that have inherited a sensitivity to it.
The common, permanent form of hair loss in both men and women is androgenetic alopecia, better known as male or female pattern baldness. It affects both males and females, but it is far more visible in men, and understanding why starts with the biology.
An enzyme called 5-alpha-reductase converts the hormone testosterone into dihydrotestosterone (DHT), a more potent androgen. In follicles that are genetically susceptible, DHT binds to the androgen receptor and gradually shrinks them, a process called miniaturisation. The follicle produces progressively finer, shorter hairs over shorter growth cycles, until it may stop producing visible hair at all. In a balding scalp you find higher DHT, more 5-alpha-reductase and more androgen receptors than in a scalp that is holding onto its hair.
The key point is that this is about sensitivity, not simply about how much testosterone a person has. Androgens have to be present for pattern baldness to happen at all: men castrated before puberty, and people whose bodies cannot respond to androgens, do not develop it. But among men with normal hormone levels, whether the hair is lost comes down to how sensitive the follicles are to DHT, and that sensitivity is inherited. Because men have far higher androgen levels than women, susceptible follicles in men are exposed to much more DHT, which is a large part of why the male pattern is so much more pronounced.
Is baldness inherited from your mother's side?
Only partly: the androgen receptor gene sits on the maternal X chromosome, but pattern baldness is polygenic and inherited from both sides.
The tendency to pattern baldness is strongly inherited; twin studies attribute roughly 80% of it to genetics. But the old rule that you can predict a man's hairline by looking at his mother's father is only part of the story. Its grain of truth is that the androgen receptor gene, which helps set how sensitive follicles are to DHT, sits on the X chromosome, and a man inherits his X chromosome from his mother.
The problem is that pattern baldness is polygenic: many genes are involved, and they sit not only on the X chromosome but on the ordinary (autosomal) chromosomes inherited equally from both parents, with an important region on chromosome 20 among others. In practice the trait is influenced by genes from your mother's and your father's side, and a father's baldness raises a son's risk several times over. So a full head of hair on your maternal grandfather is reassuring but no guarantee, and there is no single relative whose scalp settles the question.
Why women are affected differently
Women produce androgens too, but at much lower levels than men, so genetically susceptible follicles are exposed to far less DHT. Just as important, when women do develop pattern hair loss it usually takes a different shape. Instead of a receding front and a balding crown, female pattern hair loss tends to be a diffuse thinning across the top and crown of the scalp, often first noticed as a widening centre parting, while the frontal hairline is usually kept. It is graded on the Ludwig scale, where the male pattern is graded on the Norwood scale. Because the loss is spread out and the hairline holds, women seldom go bald like men, and rarely lose their hair completely.
It is also worth saying that the role of androgens in women is less clear-cut than in men. Many women with female pattern hair loss have entirely normal androgen levels, which is why specialists tend to prefer the term "female pattern hair loss" over "androgenetic alopecia" in women. If you want more detail on the hormonal side in women, our guide to DHT blockers for women goes further.
Why don't women have receding hairlines?
Receding hairlines are a feature of the male pattern, in which the follicles at the temples and front of the scalp are among the first to miniaturise. In the typical female pattern the frontal hairline is comparatively spared and the thinning sits behind it, over the top of the head, so a distinct receding hairline is uncommon. That is the main reason receding hairlines are so much rarer in women, even when there is real thinning further back.
Do women go bald too? Menopause and oestrogen
Women are not immune. Female pattern hair loss is common, affecting roughly half of women over a lifetime, and its visibility tends to rise notably after the menopause. One proposed explanation is that oestrogen has a mild protective effect on hair and that its fall after the menopause allows thinning to show, but this protective role is proposed rather than firmly established, so it is best treated as a plausible part of the picture rather than a settled fact.
Women can also have significant thinning at any age, and hair loss in women is more often driven by other, treatable causes than in men, for example low iron, thyroid problems or telogen effluvium, a temporary shedding that can follow illness, stress or childbirth. That is another reason it is worth having the cause assessed rather than assuming it is simply pattern loss.
Why do some men never go bald?
If baldness comes down to inherited follicle sensitivity, it follows that some men are simply born with follicles that are less sensitive to DHT, and they keep their hair for life. This is genetic luck rather than anything they have done: it is not a reward for a particular diet, a sign of greater virility, or the result of avoiding hats. A man who never goes bald and a man who does can have very similar testosterone levels; the difference lies in how their follicles respond to DHT, not in how much of it they make.
Two myths worth putting to rest
The first is that wearing hats causes baldness. It does not; everyday hats have no effect on pattern hair loss. The second is that a high testosterone level makes men go bald. As above, pattern baldness is driven by the follicles' inherited sensitivity to DHT rather than by how much testosterone is circulating, so a man is not losing his hair because he has "too much" testosterone.
What can be done about it
There is no cure for pattern hair loss, but there are treatments that can slow it and, for some people, thicken existing hair. The two the NHS lists as the main options for male pattern baldness are minoxidil, applied to the scalp, and finasteride, a tablet that reduces the conversion of testosterone to DHT. Minoxidil can also be used by women, but women should not take finasteride, particularly if there is any chance of pregnancy. Any treatment works only for as long as it is used, and none suits everyone, so the sensible first step is a conversation with a GP or another suitably qualified clinician who can look at the cause and talk through the options for your situation.
Frequently asked questions
Why do men go bald and women don't?
Both can develop pattern hair loss, but it is far more visible in men. Men have much higher androgen levels, so DHT reaches genetically susceptible follicles in greater amounts, and the male pattern recedes at the hairline and crown. Women make less androgen and, when they do thin, usually do so diffusely across the top while keeping the frontal hairline, so they seldom go bald the way men do.
Why don't women have receding hairlines?
Because the female pattern spares the frontal hairline. In women the thinning is typically spread over the top and crown, behind a hairline that stays largely intact, whereas a receding hairline is a hallmark of the male pattern, where the temples and front miniaturise early. Real thinning can still be present in women, but it rarely takes the form of a receding front.
Why do some men never go bald?
They inherited follicles that are less sensitive to DHT. Whether a man loses his hair depends on that inherited sensitivity rather than on his testosterone level or his lifestyle, so some men keep a full head of hair for life simply through genetic luck.
Do women go bald too?
Yes, women can and do lose hair, and female pattern hair loss is common, especially after the menopause. It usually shows as diffuse thinning rather than the receding, patchy baldness seen in men, and complete baldness is rare. Women are also more likely than men to have a treatable cause behind their thinning, such as low iron or a thyroid problem, so it is worth having it assessed.
Is baldness inherited from your mother's side?
Partly, but not only. There is some truth to it, because the androgen receptor gene sits on the X chromosome that a man inherits from his mother. However, pattern baldness is polygenic, with many genes involved on chromosomes inherited from both parents, so a father's hair loss also raises a son's risk. Family history on either side is a useful clue, but no single relative decides the outcome.
Get back to Great Hair
in 3 Easy Steps:
01
Arrange Free Consultation
Speak to one of our specialist consultants for expert advice on our range of different hair loss treatments
02
Book Your Procedure
Place a deposit to reserve a time slot at one of the My Hair UK clinics across the UK
03
Attend Your Surgery
Arrive on the day and our specialist surgical team will look after your every need
