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An umbilical hernia is a health condition where the abdominal wall behind the navel is damaged. It may cause the navel to bulge outwards—the bulge consisting of abdominal fat from the greater omentum or occasionally parts of the small intestine.
Cullen's sign is superficial edema and bruising in the subcutaneous fatty tissue around the umbilicus.. It is named for gynecologist Thomas Stephen Cullen (1869–1953), [1] who first described the sign in ruptured ectopic pregnancy in 1916.
The umbilical cord enters the fetus via the abdomen, at the point which (after separation) will become the umbilicus (belly button or navel). Within the fetus, the umbilical vein continues towards the transverse fissure of the liver , where it splits into two.
The belly button is unique to each individual due to it being a scar, and various general forms have been classified by medical practitioners. [6] [7] [further explanation needed] Outie: A navel consisting of the umbilical tip protruding past the periumbilical skin is an outie. Essentially any navel which is not concave.
Besides placenta previa and placental abruption, uterine rupture can occur, which is a very serious condition leading to internal or external bleeding. Bleeding from the fetus is rare, but may occur with two conditions called vasa previa and velamentous umbilical cord insertion where the fetal blood vessels lie near the placental insertion site unprotected by Wharton's jelly of the cord. [11]
Internal bleeding (also called internal haemorrhage) is a loss of blood from a blood vessel that collects inside the body, and is not usually visible from the outside. [1] It can be a serious medical emergency but the extent of severity depends on bleeding rate and location of the bleeding (e.g. head, torso, extremities).
Bleeding, hemorrhage, haemorrhage or blood loss is blood escaping from the circulatory system from damaged blood vessels. [1] Bleeding can occur internally , or externally either through a natural opening such as the mouth , nose , ear , urethra , vagina or anus , or through a puncture in the skin .
An omphalolith, also known as a umbolith, omphalith, [1] navel stone, [2] or umbilical concretion [3] is a periumbilical mass that may form due to the accumulation of sebum and keratin. [4]