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An inguinal hernia or groin hernia is a hernia (protrusion) of abdominal cavity contents through the inguinal canal. Symptoms, which may include pain or discomfort especially with or following coughing, exercise, or bowel movements , are absent in about a third of patients.
[3] [4] In the inguinal hernia, fatty tissue or a part of the small intestine gets inserted into the inguinal canal. [5] Other structures that are uncommon but may get stuck in inguinal hernia can be the appendix, caecum, and transverse colon. [6] Hernias can be asymptomatic, incarcerated, or strangled. [3]
Inguinal hernia repair with mesh diagram Laparoscopic hernia repair with mesh. Surgery is recommended for some types of hernias to prevent complications such as obstruction of the bowel or strangulation of the tissue, although umbilical hernias and hiatus hernias may be watched, or are treated with medication. [34]
Internal hernias occur when there is protrusion of an internal organ into a retroperitoneal fossa or a foramen (congenital or acquired) in the abdominal cavity.If a loop of bowel passes through the mesenteric defect, that loop is at risk for incarceration, strangulation, or for becoming the lead point of a small bowel obstruction. [1]
It is more often seen in men, and predominantly on the right side. Maydl's hernia should be suspected in patients with large incarcerated herniae and in patients with evidence of intra-abdominal strangulation or peritonitis. Postural or manual reduction of the hernia is contra-indicated as it may result in non-viable bowel being missed. [2]
Amyand's hernia is a rare form of an inguinal hernia (less than 1% of inguinal hernias) [2] which occurs when the appendix is included in the hernial sac and becomes incarcerated. The condition is an eponymous disease named after a French surgeon , Claudius Amyand (1660–1740), [ 3 ] who performed the first successful appendectomy in 1735.
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A Richter's hernia can result in strangulation and necrosis in the absence of intestinal obstruction. It is a relatively rare but dangerous type of hernia. [1] Richter's hernia have also been noted in laparoscopic port-sites, usually when the fascia is not closed for ports larger than 10mm.