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1. the region of the body between the anus and the genital organs, including some of the underlying structures
2. the nearly diamond-shaped surface of the human trunk between the thighs



in man, the anatomical region that comprises the pelvic floor and is located between the apex of the coccyx posteriorly, the apex of the subpubic arch anteriorly, and the ischial tuberosities laterally.

In obstetrics, the perineum is the space between the anus and the posterior commissure of the labia majora. Its bony foundation includes the pelvic ischial tuberosities, the pubic bone, and the coccyx. The perineum also contains muscles, ligaments, fatty tissue, vessels, nerves, and some internal organs. Shaped like a rhombus, it is divided into two triangles by a line that joins the ischial tuberosities; the male urethra or the female urethra and vagina pass through the anterior urogenital triangle. The rectum passes through the posterior, or anal, triangle.

Injuries to the perineum can consist of closed or open wounds. They arise most often with fractures of the pelvic bone when there is a great displacement of fragments (indirect mechanism) or with a blow to the perineum (direct mechanism). On the average, 10 percent of all women suffer perineal ruptures during childbirth, most often with the birth of the first child. The most common diseases of the perineum are suppurative processes near the rectum upon injuries to the rectal mucosa. Surgery is required to treat injuries and suppurative diseases of the perineum.


The portion of the body included in the outlet of the pelvis, bounded in front by the pubic arch, behind by the coccyx and sacrotuberous ligaments, and at the sides by the tuberosities of the ischium.
The region between the anus and the scrotum in the male, between the anus and the posterior commissure of the vulva in the female.
References in periodicals archive ?
Ricky dances with blonde friend at Lineker's Bar in Puerto Banus Pictures: JASON HEDGES; Round one.
A favourite haunt of Scots superstar Sean Connery, Puerto Banus is home to the international jet set.
Puerto Banus was also the first port of call for the party animals in us.
In Patrick's pub which overlooks the Puerto Banus marina, customers were disgusted by the rogue banker's callous action.
Onlookers claimed the 39-year-old screamed in agony and fell to the ground as the shooter escaped on Thursday in Puerto Banus on the Costa del Sol.
Peter "Fatso" Mitchell was gunned down as he relaxed in an upmarket bar near millionaire's playground resort Puerto Banus.
Bouncer Dave Costen, 28, from Bedrock Bar in Spain's Puerto Banus resort, claimed he saw the clash while the pair were on holiday on October 30.
POLICE are trying to find a man kidnapped in Puerto Banus, Spain.
EastEnders' Billy Mitchell was rescued from a Puerto Banus bar by the new slimline Bryan McFadden after his slurry antics caused much mirth among other drinkers.
The Dutch striker, 32, was in Puerto Banus last week for talks with the Seville club's sporting director Manuel Momparlet.
He bought the bargain booze in a supermarket shopping spree for his family and friends at the start of his 10-day Puerto Banus stop-over.
The 23-year-old DJ jetted out to Puerto Banus in Spain for the bash at the Pangea Club.