Does Pubic Hair Fall Out With Age?

Pubic hair does thin and can fall out with age, though complete loss is uncommon. A classic study of elderly patients found detectable pubic hair loss in roughly one in five men and one in three women, while total disappearance was rare enough that researchers considered it diagnostically meaningful when it did occur.¹ The process is gradual, driven largely by falling hormone levels, and it affects men and women through overlapping but distinct pathways.

What Actually Happens Over the Decades

Pubic hair doesn’t just vanish one day. The change unfolds slowly, usually starting in the late forties or fifties and becoming more noticeable into the sixties and seventies. Individual hairs become finer and lighter in color, the coverage area shrinks inward from its outer margins, and the overall density drops. Many people first notice that what was once coarse, dark hair has become softer and sparser, sometimes accompanied by graying. The texture shift can be subtle enough that people attribute it to grooming habits or simply not paying attention.

The trajectory varies enormously from person to person. Some people retain a fairly full distribution of pubic hair well into their eighties, while others see significant thinning by their late fifties. Genetics, overall health, body weight, and hormone levels all play roles. Because pubic hair isn’t something most people compare notes about, many assume their own experience is universal, when in reality the range of “normal” aging patterns is wide.

Hormones Are the Primary Driver

Pubic hair growth depends on androgens, the group of hormones that includes testosterone and dehydroepiandrosterone (DHEA). Both men and women produce androgens, and both experience declining levels as they age. When the hormonal fuel that sustains pubic hair drops, the hair responds by growing thinner, shorter, and eventually not at all in some follicles.

In women, menopause marks a sharp inflection point. Estrogen and androgen levels both decline, and those declining hormones affect many tissues, including the genital area and its hair.² The adrenal glands also contribute androgens throughout life, and their output gradually tapers in a process sometimes called adrenopause. Because women depend more heavily on adrenal androgens for pubic and underarm hair than men do, this adrenal slowdown hits their pubic hair especially hard.

A trial in adolescent girls and young women with adrenal insufficiency demonstrated just how central adrenal androgens are to pubic hair. When participants received DHEA supplements, they advanced significantly in pubic hair growth compared to a placebo group, which showed no progression.³ The implication runs in reverse too: when DHEA production fades with age, pubic hair loses its growth signal.

In men, the decline is more gradual. Testosterone levels drop slowly over the decades rather than falling off a cliff. A study of elderly men found that facial, pubic, and axillary hair were all reduced in amount alongside declining testicular function.⁴ Because men start with higher androgen levels and lose them more slowly, their pubic hair typically thins later and less dramatically than women’s, though the end result in very old age can look similar.

What Happens Inside the Hair Follicle

Hormones tell the story of why the signal fades, but the follicle itself undergoes physical changes that explain how the hair gets thinner and eventually stops growing. Research on hair follicle aging has revealed a process called miniaturization, where the follicle progressively shrinks with each growth cycle. What was once a thick terminal hair becomes a fine, nearly invisible vellus hair, and eventually the follicle may stop producing a visible hair altogether.

One key mechanism involves the stem cells that live in each follicle and regenerate it through repeated growth cycles. In aging follicles, DNA damage triggers the breakdown of a protein called collagen XVII, which is essential for keeping those stem cells anchored in place. Without it, the stem cells essentially get pushed out of the follicle and absorbed into the surrounding skin. Each cycle, the follicle loses a few more stem cells, shrinks a bit more, and produces a slightly thinner hair.⁵

A related discovery showed that once hair shafts start getting thinner, the miniaturization itself accelerates the problem. Shrinking follicles activate mechanical stress sensors in the remaining stem cells, which triggers a chain of signals that leads those cells to self-destruct. It becomes a feedback loop: thinner hair leads to more stem cell loss, which leads to even thinner hair.⁶ This is why, once noticeable thinning starts, it tends to progress rather than plateau.

Pubic Hair Ages Differently Than Scalp Hair

People often assume that all body hair follows the same rules, but pubic hair has its own biology. Research on the growth cycle of pubic hair found that it behaves differently from both scalp hair and underarm hair.⁷ Scalp hair has a long active growth phase, sometimes lasting years, while pubic hair cycles much more quickly. This means pubic hair never gets as long as scalp hair, but it also turns over faster, which has implications for how aging affects it.

Scalp hair loss in aging (especially male-pattern baldness) is driven heavily by a specific androgen called DHT that paradoxically causes scalp follicles to miniaturize while promoting facial hair growth. Pubic hair thinning follows a different pattern. It’s driven more by the overall decline in androgen levels than by the targeted follicle sensitivity that causes scalp balding. That’s why a man can lose most of his scalp hair while retaining fairly robust pubic hair for years, or conversely, why a woman with no scalp thinning may notice significant pubic hair loss after menopause. The two regions respond to different hormonal cues, even though the underlying stem cell aging process is similar.

Graying also follows a different timeline in the pubic region. Scalp hair tends to gray first, sometimes decades before pubic hair changes color. When pubic hair does gray, it often does so incompletely, with a mix of pigmented and unpigmented hairs persisting for years. This is partly because the melanocyte stem cells that produce pigment are depleted at different rates in different body sites.

Men Versus Women

The broad strokes are the same for both sexes: androgens decline, follicles miniaturize, hair thins. But the timelines and patterns diverge enough to be worth separating.

For women, the most dramatic changes typically coincide with perimenopause and the years immediately following menopause. Estrogen drops sharply, and the adrenal androgens that had been sustaining pubic hair continue their own long decline. The result is a noticeable reduction in pubic hair density, often accompanied by changes in the vulvar skin itself, which becomes thinner and drier. Among elderly women, roughly a third showed detectable pubic hair loss in the foundational study on this topic, and a small number lost it entirely.¹

For men, the thinning is usually more gradual. Testosterone declines at roughly one to two percent per year starting in the thirties or forties, so the signal fades slowly. The same study found detectable pubic hair loss in about one in five elderly men, and only one man in the sample had complete loss.¹ Men are more likely to notice thinning of their leg, chest, and underarm hair first, with pubic hair changes coming later.

Obesity can complicate the picture in both sexes. Fat tissue converts androgens to estrogens, which can alter the hormonal balance in ways that either accelerate or delay pubic hair changes depending on the individual. Women who are overweight may retain slightly higher androgen levels after menopause, while men with significant visceral fat may experience lower testosterone sooner. These are tendencies, not certainties, and individual variation dwarfs the population-level patterns.

When Pubic Hair Loss Signals a Medical Problem

Most age-related pubic hair thinning is just that: a normal part of getting older. But sudden or complete loss, especially before the typical age range, can be a sign of something worth investigating.

Adrenal insufficiency: Because the adrenal glands are a major source of the androgens that sustain pubic hair, conditions like Addison’s disease can cause pubic and axillary hair to thin or disappear entirely. Early reports noted women with Addison’s disease who failed to develop pubic hair despite otherwise normal menstrual cycles, pointing to adrenal androgens as the key driver rather than ovarian hormones.⁸
Thyroid disorders: Both underactive and overactive thyroid can cause body hair changes. Hypothyroidism in particular has been linked to sparse pubic and underarm hair, partly because thyroid dysfunction can suppress adrenal function.
Alopecia areata: This autoimmune condition, best known for causing patchy scalp hair loss, can also target pubic hair. When it does, the loss tends to be patchy and rapid, which distinguishes it from the gradual thinning of normal aging.
Pituitary disorders: The pituitary gland orchestrates hormone production throughout the body. Tumors or other pituitary problems can reduce the output of hormones that ultimately sustain body hair, leading to pubic hair loss as one of several symptoms.

The general rule from the research is that gradual thinning over years is expected and unremarkable, while rapid or complete loss, particularly in someone younger than sixty, warrants a conversation with a doctor. The foundational study on elderly hair loss concluded that only the complete absence of pubic hair carries diagnostic significance in old age, since partial thinning is so common.¹

Does Grooming History Affect How Pubic Hair Ages?

A common concern is whether decades of shaving, waxing, or other hair removal might accelerate age-related thinning. The short answer is that normal grooming doesn’t permanently damage follicles. Shaving cuts hair at the surface and has no effect on the follicle itself. Waxing pulls hair out by the root, which can temporarily damage individual follicles, but they almost always recover and resume growing.

That said, years of aggressive waxing or epilating can occasionally cause scarring at the follicle level, particularly if repeated ingrown hairs or infections have occurred. Scarring alopecia, where scar tissue replaces the follicle, is permanent. For most people, though, this is a minor contributor compared to the hormonal and stem cell mechanisms that drive the real thinning. If you’ve waxed for twenty years and notice thinning in your fifties, age is almost certainly the primary cause, not the waxing.

Laser hair removal and electrolysis are a different story, as those methods are specifically designed to destroy follicles. People who had these treatments in their twenties or thirties may find that the remaining untreated follicles thin with age while the treated ones obviously don’t grow back, which can create an uneven appearance that’s sometimes mistaken for patchy age-related loss.

Can You Slow or Reverse the Thinning?

Because the thinning is primarily hormonal, the most direct intervention would be hormone replacement. Topical or systemic androgens can theoretically support pubic hair growth, and the DHEA trial in adrenal-insufficient patients demonstrated a clear effect on pubic hair development.³ However, DHEA supplementation in healthy older adults for the purpose of cosmetic hair restoration isn’t standard medical practice. The risks of androgen supplementation, including acne, mood changes, and in women the possibility of virilizing side effects, generally outweigh the benefit of slightly fuller pubic hair.

Menopausal hormone therapy that includes estrogen and sometimes low-dose testosterone may incidentally slow pubic hair thinning in women, but this isn’t typically a reason to start or continue therapy. The decision to use hormone replacement involves balancing cardiovascular, bone, and breast cancer considerations that are far more consequential than hair density.

Minoxidil, the topical treatment widely used for scalp hair loss, has not been rigorously studied for pubic hair specifically. Some dermatologists have used it off-label in the genital area, but irritation is common on the thinner skin of the pubic region, and evidence of effectiveness there is limited to anecdotal reports. The follicle miniaturization process driven by stem cell loss is not something minoxidil is designed to reverse, so expectations should be modest even if someone decides to try it.

The Emotional Side of the Change

Pubic hair thinning doesn’t get the same cultural attention as scalp hair loss, but it can carry its own psychological weight. For some people, the change triggers a visceral awareness of aging that feels more private and therefore harder to talk about. It can also intersect with shifts in sexual self-image, particularly if a partner notices or comments. Women who associate full pubic hair with fertility or youth sometimes find the change more distressing than they expected, while others are entirely unbothered or even welcome the reduced maintenance.

The emotional response also depends on cultural context and personal grooming history. In an era where many people have been removing most or all of their pubic hair since young adulthood, involuntary thinning can feel different than it might have to previous generations. Some people find it ironic that they spent years removing hair that their body is now taking away on its own. Others discover that the sparse, fine regrowth of aging hair creates a different texture than cleanly shaved or waxed skin, which can take some getting used to.

There’s no medical reason to worry about the change itself. Pubic hair serves some functions, including reducing friction during physical activity and sexual contact, and it plays a minor role in trapping pheromones. But the loss of some or even most pubic hair in older age doesn’t create health problems. If the thinning bothers you, a dermatologist can confirm that it’s age-related rather than pathological, which for many people is reassurance enough.

1
The Journal of Clinical Endocrinology & Metabolism. OBSERVATIONS ON BODY HAIR IN OLD PEOPLE
2
Maturitas. Hormonal changes during menopause
3
PubMed. Effects of dehydroepiandrosterone therapy on pubic hair growth and psychological well-being in adolescent girls and young women with central adrenal insufficiency: a double-blind, randomized, placebo-controlled phase III trial
4
The American Journal of Medicine. Declining testicular function with age: Hormonal and clinical correlates
5
PubMed. Hair follicle aging is driven by transepidermal elimination of stem cells via COL17A1 proteolysis
6
PubMed. Hair shaft miniaturization causes stem cell depletion through mechanosensory signals mediated by a Piezo1-calcium-TNF-α axis
7
British Journal of Dermatology. The normal trichogram of pubic hair
8
The Journal of Clinical Endocrinology & Metabolism. LOSS OF AXILLARY AND PUBIC HAIR IN A PATIENT WITH ADDISON’S DISEASE AND REGULAR MENSTRUATION: A CASE REPORT