Men have pubic bones, and they are structurally essential. The pubic bone is one of three bones that fuse together to form each side of the pelvis in every human, regardless of sex. What differs between male and female pelves is not which bones are present but how those bones are shaped, angled, and spaced. The pubic region happens to be one of the most telling areas for those differences, which is probably why the question comes up in the first place.
What the Pubic Bone Is and What It Does
Each side of your pelvis is made up of three bones that start as separate structures in childhood and gradually fuse into a single unit called the hip bone, or os coxae. These three are the ilium (the broad wing you feel at your hip), the ischium (the bone you sit on), and the pubis (the bone at the front). The left and right pubic bones meet in the middle at a joint called the pubic symphysis, which is held together by a tough fibrocartilaginous disc designed to absorb compressive and tensional forces.
1PubMed Central. The adult human pubic symphysis: a systematic reviewThis arrangement is not optional anatomy. The pubic bones complete the pelvic ring, transferring weight from the spine through the sacrum and hip bones down into the legs. Without them, the pelvis would be an open arch with no structural integrity for standing, walking, or running. Beyond load-bearing, the pubic region serves as an anchor point for several muscles involved in core stability and hip movement. The rectus abdominis, adductor longus, adductor brevis, gracilis, and pectineus all attach in or around the pubic symphysis, with the rectus abdominis footprint averaging roughly eight square centimeters and the adductor longus about four.
2PubMed. Surface Mapping of the Musculotendinous Attachments at the Pubic Symphysis in Cadaveric Specimens: Implications for the Treatment of Core Muscle InjuryA small muscle called the pyramidalis, the only abdominal muscle that sits directly in front of the pubic bone, arises from the pubic crest and connects to the linea alba. It works together with an anterior pubic ligament that also links the adductor longus to the lower abdominal wall, forming an interconnected complex that matters for groin stability.
3PubMed Central. The pyramidalis-anterior pubic ligament-adductor longus complex (PLAC) and its role with adductor injuries: a new anatomical conceptHow Male and Female Pubic Bones Differ
The most commonly cited difference is the subpubic angle, the angle formed where the two pubic bones meet below the symphysis. In women, this angle is wider, often described as creating a broader, more rounded arch beneath the symphysis. In men, the angle is narrower and more pointed. This distinction is measurable even before birth: studies of human fetuses have found that the subpubic angle is significantly larger in females during the first half of gestation and again in the final stretch before delivery.
4PubMed Central. Morphometric Study of Subpubic Angle in Human FetusesThe pubic symphysis disc itself shows differences. In women, the disc is wider from side to side and shorter top to bottom, sometimes extending beyond the bony margins of the joint. In men, it tends to be narrower and taller. Internally, the cartilage shows sex-specific wear patterns: shearing clefts are more common in females, and the retropubic eminence, a small projection behind the joint, forms through different mechanisms depending on sex. In women, it develops earlier and is ligamentous or cartilaginous; in men, it forms later through bony lipping as disc cartilage is pushed out under mechanical stress.
5PubMed. The structure of the human symphysis pubis with special consideration of parturition and its sequelaeLooking at the pelvic inlet, the opening through which a baby must pass during birth, imaging studies show that the average male inlet is more angular and narrow, with the widest point sitting further back. The female inlet tends to have rounder contours and a wider internal space.
6Scientific Reports. Sex determination using image processing reveals elliptical features of the female pelvic inletThe Pelvic Inlet Shape Is More Complicated Than Textbooks Suggest
For decades, anatomy and midwifery textbooks have categorized pelvic inlet shapes into four types: gynecoid (considered the typical female form, rounded), android (considered the typical male form, more heart-shaped), anthropoid (oval, elongated front to back), and platypelloid (wide and flat). The standard teaching was that most women have a gynecoid pelvis and most men have an android one.
A study of 378 skeletonized pelves from three different populations found that this tidy classification does not hold up well. The most common inlet shape for both males and females turned out to be android. When shape was treated as a continuous variable rather than forced into categories, it was not sexually dimorphic in two of the three populations examined. The researchers concluded that the traditional four-category system overstates how different male and female inlet shapes actually are and recommended discontinuing its use as a way to describe typical inlet shape.
7PubMed. Pelvic Inlet Shape Is Not as Dimorphic as Previously SuggestedThis does not mean there are no real sex differences in the pelvis. There clearly are. But the differences are better captured by continuous measurements of specific dimensions, like the transverse diameter, the subpubic angle, and the depth of the pelvic cavity, rather than by categorical labels that sort pelves into neat boxes. The reality is a spectrum with a lot of overlap between sexes, not two cleanly separate forms.
When and How These Differences Develop
Pelvic bones begin forming early in embryonic development. An initial structure of dense tissue forms from the surrounding mesenchyme, which then converts to cartilage. Bone starts to replace that cartilage while still in the womb, but the process is extraordinarily slow. Secondary ossification centers continue appearing after birth at various locations, and the three component bones of each hip bone do not fully fuse until adulthood, typically in the late teens or early twenties.
8PubMed. Ontogeny of the Human PelvisPuberty is the main event for pelvic sexual differentiation. Estrogen promotes widening of the pelvic inlet, increases the distance between the ischial bones, and broadens the pubic symphysis. Testosterone drives more growth in the shoulders and keeps the pelvis comparatively narrow. Research on transgender adolescents receiving hormone therapy has confirmed how powerful these hormonal signals are. In trans women who began puberty suppression early and then received estrogen, hip bone geometry shifted toward patterns typical of the experienced gender. Trans men who began early and received testosterone saw a similar shift in the other direction. But these changes were only dramatic when treatment began in early puberty; those who started later remained closer to the measurements of their sex assigned at birth.
9PubMed Central. Development of Hip Bone Geometry During Gender‐Affirming Hormone Therapy in Transgender Adolescents Resembles That of the Experienced Gender When Pubertal Suspension Is Started in Early PubertySpecific pelvic measurements reflect these hormonal effects clearly. In individuals assigned male at birth who underwent early puberty suppression and then estrogen therapy, the pelvic inlet, pubic symphysis width, and interischial distance all increased to dimensions comparable to untreated individuals assigned female at birth. Meanwhile, in individuals assigned female at birth who began early suppression, pelvic inlet width decreased by about a centimeter compared to untreated females, reaching dimensions comparable to untreated males.
10PubMed Central. Shaping the Skeleton: Impact of GnRH Analogue and Sex Hormone Therapy on Skeletal Dimensions in Transgender IndividualsOnce puberty is complete and the growth plates have closed, the basic dimensions of the pelvis are largely set. Estrogen and testosterone can no longer reshape the bony framework in the same way they could during growth. Shoulder width, for instance, once expanded by testosterone, does not shrink again. The pelvis follows a similar logic: its shape during adolescence is a one-time event driven by which hormones are dominant while the bones are still growing.
11The Journal of Clinical Endocrinology & Metabolism. Shaping the Skeleton: Impact of GnRH Analogue and Sex Hormone Therapy on Skeletal Dimensions in Transgender IndividualsOsteitis Pubis and Other Pubic Bone Problems in Men
Far from being irrelevant to men, the pubic bone is a common source of pain in male athletes. Osteitis pubis is an overuse syndrome involving inflammation and microtrauma at the pubic symphysis. It shows up most often in sports that involve kicking, rapid direction changes, and twisting, things like soccer and rugby. Athletes typically feel pain in the front of the groin and may also have lower abdominal, adductor, perineal, or scrotal pain.
12PubMed Central. Osteitis pubis in elite athletes: Diagnostic and therapeutic approachIn a review of 59 patients diagnosed with osteitis pubis at sports medicine clinics, 50 were male and only 9 were female. The most frequent symptoms were pubic pain and adductor pain. Men also tended to show tenderness along the superior pubic rami and reduced hip rotation, while women more often had hip pain and sometimes a contributing history of previous childbirth. The mechanical, sport-related form was by far the most common category, accounting for 48 of the 59 cases.
13PubMed. Osteitis pubis in athletes. Infection, inflammation or injury?The condition is fundamentally about instability at the symphysis joint. Repetitive muscle contractions from the adductors below and the abdominals above create shearing forces that the fibrocartilage disc must absorb. When the load exceeds what the tissue can handle, the result is chronic inflammation and pain that can sideline an athlete for months. The fact that men are more frequently affected underscores how central the pubic bones are to their physical activity, not how irrelevant they are.
14Current Sports Medicine Reports. Osteitis Pubis in AthletesWhat the Pubic Symphysis Tells Forensic Scientists
The pubic symphysis is one of the most widely used skeletal landmarks in forensic anthropology, both for estimating sex and for estimating age at death. Its surface changes in a reasonably predictable way over a lifetime. In young adults, the surface has ridges and furrows called billows. These gradually smooth out, starting from the back and bottom and working toward the top, eventually leaving a flat, non-crenulated surface. In older individuals, the edges begin to erode and develop porosity.
15Forensic Science International. Estimating age from the pubic symphysis: A new component-based systemThe Suchey-Brooks method is one of the most commonly applied systems for reading these surface changes and assigning an age range.
16PubMed Central. Morphological characteristics of pubic symphysis for age estimation of exhumed persons More recent approaches have moved toward fully quantitative methods that use 3D scanning to score the complexity of the symphyseal surface, reducing the observer subjectivity inherent in visual comparison against reference casts.
17PubMed. Modeling Bone Surface Morphology: A Fully Quantitative Method for Age-at-Death Estimation Using the Pubic SymphysisFor sex estimation, the subpubic concavity described by Phenice in 1969 remains influential. The curve beneath the symphysis tends to be concave in females and straighter or convex in males. This feature has even been adapted for use with subadult skeletons, though with modifications, reflecting how early pelvic sexual differences can emerge.
18PubMed. Adapting and Applying the Phenice Adult Morphological Sex Estimation Technique to SubadultsPopulation Variation in Pelvic Shape
Sex differences in the pelvis are real but they are not the only source of variation. Pelvic shape also varies considerably among different human populations, and a lot of that variation has nothing to do with sex. Studies using geometric morphometric analysis on pelves from around the world have found that over 90% of the variation in hip bone shape exists within local populations, not between continental groups. That pattern closely mirrors what geneticists see with neutral genetic markers and skull measurements, and it strongly suggests that much of global pelvic diversity has been shaped by population history, genetic drift, and migration rather than by direct natural selection for any single function.
19PLOS ONE. Global Geometric Morphometric Analyses of the Human Pelvis Reveal Substantial Neutral Population History Effects, Even across SexesClimate and ancestral geography have left their mark as well. Different populations show different average pelvic proportions, and these differences can be substantial enough to matter clinically, for instance in obstetric practice. But the key finding from recent work is that the pelvis is not tightly constrained to one optimal shape. Different regions of the pelvis are not locked together, meaning one dimension can vary without dragging everything else along. This low covariance between functional regions is what has allowed natural selection and drift to generate such wide morphological diversity.
20PubMed. Human Variation in Pelvic Shape and the Effects of Climate and Past Population HistoryThis variation extends to both sexes. A review encompassing multiple populations concluded that human pelves are not geometrically similar from one group to the next, and that pelvic morphology reflects the combined influence of population history, active selection, and drift, without being dominated by any single constraint.
21PubMed. Beyond sex, gender, and other dilemmas: Human pelvic morphology from an integrative contextThe Obstetrical Dilemma and Why It May Be Overstated
A famous idea in human evolution, proposed by Sherwood Washburn in 1960, holds that the female pelvis is caught in a tug-of-war between being wide enough for childbirth and narrow enough for efficient bipedal walking. This “obstetrical dilemma” was long accepted as the explanation for why human birth is so difficult compared with other primates.
Recent biomechanical research has challenged the walking-efficiency side of that argument. A study that directly measured the energy cost of walking and running in people with varying pelvic widths found no relationship between how wide a person’s pelvis was and how much energy they used to move. Wider hips did not make locomotion less efficient.
22PLOS ONE. A Wider Pelvis Does Not Increase Locomotor Cost in Humans, with Implications for the Evolution of Childbirth This finding suggests that the tight trade-off between walking and birth canal size may never have existed in the way Washburn envisioned. If a wider pelvis does not meaningfully compromise movement, then something other than bipedal gait must have constrained birth canal dimensions over evolutionary time.
23PubMed Central. Evolution of the human pelvis and obstructed labor: new explanations of an old obstetrical dilemmaThat does not mean the pelvis has evolved without any conflicting demands. Fossil evidence makes clear that the pelvis has been reshaped repeatedly over millions of years as different pressures, including locomotion, thermoregulation, and obstetric requirements, competed for influence at different points in hominin evolution.
24PubMed Central. The evolution of the human pelvis: changing adaptations to bipedalism, obstetrics and thermoregulation But the narrative of a simple bipedalism-versus-childbirth compromise, one that implies the female pelvis is barely adequate and the male pelvis is the “default,” is more outdated than most people realize.
Sex Differences in the Pelvis Are Ancient, Not Uniquely Human
One common assumption is that the dramatic sexual dimorphism in the human pelvis is a uniquely human thing, a product of our unusually large-brained babies needing a wider birth canal. Comparative work tells a different story. A study that compared pelvis shape in humans and chimpanzees found that the pattern of sex differences was almost identical in the two species. The direction of change from male to female mean shapes was essentially the same; it was only the magnitude that differed. In humans, the sex difference was about twice as large as in chimpanzees, but both species shifted along the same anatomical axis.
25PubMed Central. Sex differences in the pelvis did not evolve de novo in modern humansThis means that pelvic sexual dimorphism was not invented from scratch when human brains expanded. It was already present in our common ancestor with chimpanzees and was amplified in the human lineage, probably as neonatal head size increased. The basic blueprint, wider outlet and inlet in females, narrower in males, predates our species.
Androgen Insensitivity and What It Reveals About Pelvic Development
One of the most informative natural experiments in pelvic biology involves people with complete androgen insensitivity syndrome (CAIS). These individuals have XY chromosomes and produce testosterone, but their cells cannot respond to it. They develop female external anatomy, are typically raised as women, and have pelves that follow a female pattern because estrogen, which their bodies do produce, is the uncontested driver of pelvic shape.
Studies of bone health in women with CAIS have revealed that while their femoral bone density is often close to normal female values, their spine density tends to be reduced, averaging roughly one standard deviation below the mean for women. When bone density was corrected for the tall stature common in CAIS, the deficits actually appeared at both the spine and hip.
26PubMed. The contribution of testosterone to skeletal development and maintenance: lessons from the androgen insensitivity syndrome A larger cohort study found that nearly half of gonadectomized women with CAIS had spine density scores in the pathologically low range, and that estradiol levels were positively associated with lumbar spine density.
27European Journal of Endocrinology. Bone health in complete androgen insensitivity syndrome: a comprehensive assessment in a large adult cohortCAIS demonstrates that testosterone is not what gives the pelvis its bones. Estrogen handles much of the work of pelvic shaping and maintenance. Without functional androgen receptors, the pelvis develops along female lines, confirming that the male pelvic pattern requires active testosterone signaling during growth, not merely the absence of estrogen. The pubic bones are there regardless; what hormones dictate is their proportions and spatial relationships.
Why Anatomists Took So Long to Describe the Female Pelvis Accurately
The widespread awareness of pelvic sex differences is sometimes credited to eighteenth-century anatomists, with the narrative suggesting that earlier physicians operated under a “one-sex model” that treated the female body as a lesser version of the male. A historical analysis of Latin and vernacular sources from around 1600 challenges that timeline. By the early seventeenth century, many leading physicians were already describing unique features of the female skeleton and illustrating them visually, insisting that female pelvic anatomy was purposeful and distinct rather than simply inferior.
28PubMed. A woman down to her bones. The anatomy of sexual difference in the sixteenth and early seventeenth centuriesThe idea that anatomists only “discovered” pelvic differences in the Enlightenment era reflects a historiographic oversimplification more than a reality. What did change in the eighteenth century was the political context in which those differences were discussed, not the basic anatomical recognition. Still, the long centuries during which anatomical teaching was based almost exclusively on male cadavers left a legacy. Even today, the default pelvis in many textbook diagrams is implicitly male, and some of the confusion behind questions like “do men have pubic bones” may stem from this historically lopsided presentation, where the female pelvis was the one that warranted special attention and the male pelvis was just “the pelvis.”