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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 ?
Calismanin 1997-2017 tarihleri arasinda uluslararasi bir dergide yayinlanmis olmasi, arastirma makalesi olmasi, ingilizce olmasi, orneklem grubunun gebelerden olusmasi, gebelikte perineal masaj yapilmis olmasi ve calismanin tam metnine ulasilmis olmasi makale secim kriterlerini olusturmaktadir.
Although the small sample size and absence of long-term results were limitations of this study, the satisfactory preliminary results encourage us to consider that combined repair of anal sphincters, perineal body, superficial transverse perinei muscles, and bulbospongiosus muscles may improve surgical outcomes in patients with OASIS.
In both PSARP and ASARP the perineal body and skin bridge is laid open which is not done in Dave's NSARP with adequate exposure like PSARP.
To preserve the normal tissue, achieve local radical excision, and minimize the operative trauma of the perineal wound as well as minimize the damage to the nerves supplying the genital organs, we hypothesized that preserving part of the levator ani muscle or sacrococcyx, according to preoperative pelvic magnetic resonance imaging (MRI), may lower the perineal morbidity.
In this study, a higher prevalence of high-grade perineal tears during delivery in the general population was found compared to that previously reported of 0.8% (15).
For more detailed evaluation, the patients were subdivided into three groups according to the perineal body thickness: PBT <10 mm, 10-12 mm and >12 mm.
But it is not suitable not for the postoperative perineal pain and/or dysuria (as in our patient), because of the risk of opioid dependence.
This surgical procedure effectively increases the area of the perineal body and returns the vulva to a more vertical position, but the sunken position of the anus remains unchanged.
It shows the effectiveness of STP on knowledge of practice regarding perineal care.
"Warm showers and perineal exercises could be considered as adjunct therapy for women suffering from pain, anxiety, and stress during childbirth," the authors write.
This retrospective clinical observational study was focused on the impact of MRMPP on the peripartum perineal injury during a 60-year period (January 1, 1950 to December 31, 2010) at the Maternity Ward, Bjelovar County General Hospital in Bjelovar, a town in north-west Croatia.
The perineal defect was revealed by dissecting the hernia vesicle through posterior approach.