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Definition & Pronunciation

IPA:/ˈpjuː.bɪs/Phonetic Spelling:PYOO-bis

Pubis is the front and lower part of the pelvis. It is one of the three bones that join during development to form each hip bone, together with the ilium and ischium.

The left and right pubic bones meet at the front of the pelvis at a joint called the pubic symphysis. The pubis helps support the pelvic region and provides attachment points for muscles involved in movement, posture, urination, pelvic-floor function, and sexual activity.

The term should not be confused with mons pubis, the soft fatty mound of tissue located over the pubic bone.

Sexopedia Quick Reference

Pubis

Also Known As: pubic bone, os pubis

Grammar
Part of speech: nounForms:Singular: pubis; Plural: pubes; Related adjective: pubic
Synonyms
Pubic bone, Os pubis

Note: Pubic bone is the usual English term, while os pubis is a formal Latin anatomical name.

Antonyms
None in standard anatomical usage

Easy Explanation

The pubis is the front part of the pelvic bone.

The body normally has a left pubis and a right pubis. They meet in the middle at the pubic symphysis.

The pubis helps:

  • form the front of the pelvis;
  • protect nearby pelvic organs;
  • support muscles and connective tissues;
  • stabilize the body during movement;
  • support pelvic-floor structures;
  • provide a foundation beneath the external genital region.

Simple examples include:

  • The pubis forms the front part of the pelvis.
  • The two pubic bones meet at the pubic symphysis.
  • The mons pubis lies over the pubic bone.
  • Pelvic muscles attach near the pubis.
  • Injury to the pubis may cause groin or pelvic pain.

Grammatical Formation and Usage

Pubis is mainly used in anatomical and medical writing.

Common structures include:

the pubis

  • The pubis forms the anterior part of the hip bone.
  • Several muscles attach to the pubis.

pubic + noun

  • pubic bone;
  • pubic symphysis;
  • pubic region;
  • pubic pain;
  • pubic arch;
  • pubic hair.

pain near the pubis

  • The athlete reported pain near the pubis.
  • Pregnancy may sometimes place strain around the pubic symphysis.

The plural form pubes is rare outside specialist anatomical writing.

Anatomy and Structure

Each hip bone develops from three main parts:

  • the ilium;
  • the ischium;
  • the pubis.

The pubis is located at the front and lower portion of the hip bone. It includes several parts, such as the body and the superior and inferior pubic rami.

The left and right pubic bones join at the pubic symphysis, a slightly movable joint made partly of cartilage.

Together, the pubic bones contribute to:

  • the front wall of the pelvis;
  • the pubic arch;
  • parts of the hip socket;
  • muscle attachment;
  • support of pelvic soft tissues.

Pubis and Mons Pubis

The pubis and mons pubis are different structures.

Pubis refers to bone.

Mons pubis refers to the rounded pad of fatty tissue and skin lying over the pubic bone.

Compare:

  • The pubis is part of the skeleton.
  • The mons pubis is soft external tissue.
  • Pubic hair commonly grows over the mons pubis.
  • The pubic symphysis is where the two pubic bones meet.

The word pubic may describe the bone, nearby body region, or hair growing in that region.

Pubic Symphysis

The pubic symphysis is the joint where the left and right pubic bones meet at the front of the pelvis.

It normally permits only limited movement, but its flexibility may increase during pregnancy because of hormonal and mechanical changes.

Problems involving this joint may cause:

  • pain at the front of the pelvis;
  • groin discomfort;
  • pain while walking;
  • discomfort when turning in bed;
  • pain during exercise or sexual activity;
  • instability in severe cases.

Persistent or severe pain should be evaluated by a healthcare professional.

Muscles and Pelvic-Floor Support

Several muscles attach to or near the pubis.

These include muscles involved in:

  • moving the thighs;
  • stabilizing the pelvis;
  • supporting the abdominal wall;
  • controlling the pelvic floor;
  • urination and continence;
  • sexual function.

Pelvic-floor muscles connect with bony and connective structures of the pelvis, including areas near the pubis.

Weakness, injury, or excessive tension in these muscles may contribute to pelvic pain, urinary symptoms, painful penetration, or sexual discomfort.

Sexual and Genital Relevance

The pubis lies beneath and near the external genital region.

In people with vulvar anatomy, the mons pubis and front of the vulva lie over or below the pubic area.

In people with penile anatomy, the base of the penis and surrounding soft tissues lie close to the pubic region.

During sexual activity, pressure may be transmitted through the soft tissues over the pubis. Discomfort may occur if there is:

  • pelvic injury;
  • joint inflammation;
  • muscle strain;
  • pregnancy-related pelvic pain;
  • recent surgery;
  • excessive pressure or impact.

Pain should not be ignored if it is persistent or severe.

Pubic Arch

The pubic arch is formed by the lower parts of the left and right pubic bones.

Its size and angle vary naturally among individuals.

The pubic arch contributes to the shape of the lower pelvis and is relevant to:

  • pelvic anatomy;
  • childbirth;
  • genital support;
  • surgical planning;
  • anatomical comparison.

Pelvic shape varies widely and should not be used alone to determine sex, gender, fertility, or childbirth ability.

Common Misunderstandings

Pubis means pubic hair.
The pubis is a bone; pubic hair grows in the region over it.

Pubis and mons pubis are the same.
The pubis is bone, while the mons pubis is soft tissue.

The pubis is a sexual organ.
It is part of the pelvis, although it supports tissues and muscles involved in sexual and reproductive function.

Only women have a pubis.
People of all sexes have pubic bones.

Pain near the pubis always comes from the bone.
Muscles, joints, nerves, urinary structures, reproductive organs, and soft tissues may also cause pain.

Sample Sentences

  1. The pubis forms the front part of the pelvis.
  2. The left and right pubic bones meet at the pubic symphysis.
  3. Several pelvic muscles attach near the pubis.
  4. The mons pubis lies over the pubis.
  5. Injury to the pubis may cause groin pain.
  6. Pregnancy can increase strain around the pubic symphysis.
  7. The pubis is part of the hip bone, not a genital organ.
  8. Persistent pain near the pubis should be medically assessed.

Connection to Sexuality

The pubis is connected to sexuality because it forms the bony foundation beneath the external genital region and supports muscles involved in pelvic stability, urination, continence, and sexual function.

Pressure, injury, pregnancy-related changes, or pelvic-floor tension around the pubic region may affect comfort during touch, penetration, movement, or orgasm.

Understanding the pubis helps distinguish bone from nearby structures such as the mons pubis, pubic hair, vulva, penis, and perineum while supporting accurate discussion of pelvic pain and sexual health.


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