Difference between the Anatomy of a Male Pelvis and Female Pelvis

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Difference between the Anatomy of a Male Pelvis and Female Pelvis:The Anatomy of the Male and Female Pelvis show differences reflecting their respective roles in reproduction and biomechanics. In males, the Pelvis usually features a narrower and more cylindrical pelvic inlet and outlet, along with thicker and heavier pelvic bones for increased support and stability. On the other hand, the Female Pelvis is characterised by a wider and more spacious pelvic inlet and outlet, lighter and more delicate pelvic bones to accommodate childbirth, and a wider pubic arch facilitating delivery. The sacrum is shorter and less curved, and the coccyx is more mobile, providing flexibility during childbirth. 

Difference between the Anatomy of a Male Pelvis and Female Pelvis

Males have narrower Pelvises with heavier bones, whereas Females have wider Pelvises to aid childbirth.
The table below provides the differences between the Anatomy of a Male Pelvis and a Female Pelvis.

Feature Male Pelvis Female Pelvis
Pelvic Inlet Heart-shaped, narrower Oval or round-shaped, wider
Pelvic Outlet Smaller, more closed Wider, more open
Pelvic Cavity More cylindrical, narrower Wider, more spacious
Pelvic Bones Thicker, heavier, more robust Lighter, more delicate
Pubic Arch More acute angle (<90 degrees) Wider angle (>90 degrees)
Sacrum/Coccyx Longer, more curved Shorter sacrum, less curved coccyx
Ischial Spines More prominent, closer together Less prominent, further apart
Pelvic Brim Narrower, more heart-shaped Wider, oval or round-shaped

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Anatomy of a Male Pelvis

The Male Pelvis is anatomically characterised by its robust structure, featuring narrower dimensions and heavier bones compared to the Female Pelvis. Its pelvic inlet is heart-shaped and narrower, while the outlet is smaller and more closed. The sacrum and coccyx are longer and more curved, providing stability and support

Features of Male Pelvis

  • Narrower Pelvic Inlet: The pelvic inlet in Males is narrower and heart-shaped compared to Females, facilitating weight-bearing and stability.
  • Acute Pubic Arch: The angle formed by the pubic bones, known as the pubic arch, is more acute in males, typically less than 90 degrees.
  • Robust Pelvic Bones: Male pelvic bones are thicker and heavier, which provides greater support and stability, particularly for weight-bearing activities.
  • Longer, Curved Sacrum: The sacrum, the triangular bone at the base of the spine, is longer and more curved in males, contributing to the overall stability of the Pelvis.

Anatomy of Female Pelvis

The Female Pelvis is characterized by its wider dimensions and lighter pelvic bones, adapted to accommodate childbirth and support the reproductive organs. Its wider pelvic inlet and outlet, along with a wider pubic arch, facilitate the passage of the baby during delivery. 

Features of Female Pelvis

  • Wider Pelvic Inlet: The pelvic inlet is wider and more oval-shaped in Females compared to males. This facilitates childbirth by allowing the passage of the infant's head through the birth canal.
  • Broader Greater Sciatic Notch: The greater sciatic notch, located on the posterior aspect of the Pelvis, tends to be wider in Females. This provides more space for the passage of nerves and blood vessels in the pelvic region.
  • Shallower Pelvic Cavity: The pelvic cavity, which houses the reproductive organs, is shallower in Females compared to males. This provides additional space for the developing fetus during pregnancy.
  • Wider Subpubic Angle: The angle formed by the meeting of the pubic bones tends to be wider in Females, facilitating childbirth by allowing more room for the passage of the infant's head.

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Similarities between the Anatomy of a Male Pelvis and Female Pelvis

  • Bone Structure: Both the Male and Female Pelvis consist of the same set of bones, including the two hip bones, sacrum, and coccyx. These bones are interconnected by joints and ligaments.
  • Functions: The primary functions of the Pelvis are similar in both males and Females, including supporting the weight of the upper body, providing attachment points for muscles and ligaments, and protecting the pelvic organs.
  • Muscles and Ligaments: Many of the muscles and ligaments that attach to the Pelvis are similar in both Males and Females. These include the muscles of the pelvic floor, hip muscles, and ligaments that stabilize the Pelvis.

Differences in Pelvic Anatomy reflect the respective reproductive and biomechanical functions of the male and Female Pelvic. The Female Pelvis is adapted for childbirth, with wider dimensions and greater flexibility to accommodate the growing fetus and facilitate delivery, whereas the male Pelvis is optimized for support and stability.

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What is the Pelvis?

The Pelvis is a bony structure that supports the spine and contains and protects the pelvic organs.

What are the primary functions of the Pelvis?

The Pelvis provides structural support, protects organs, and facilitates movement.

How does Pelvic Anatomy differ between males and Females?

Female Pelvic exercises are wider and shallower to accommodate childbirth, while male Pelvic are narrower and deeper to support the weight of the body.

What medical conditions can affect the Pelvis?

Conditions such as fractures, pelvic inflammatory disease (PID), and pelvic floor disorders can affect the Pelvis.

What are some common pelvic injuries?

Common pelvic injuries include fractures of the pelvic bones, which can result from falls, accidents, or trauma. Pelvic floor dysfunction, such as pelvic organ prolapse or urinary incontinence, can also occur due to weakened pelvic floor muscles.