Definition of Duodenum:

First portion of the small intestine between the pylorus and jejunum, connecting to the stomach.

Also: Duodenal

Topics Related to Duodenum


...related topic
“Neutralizes acid in the stomach, esophagus, or first part of the duodenum.”


...related topic
“...Bile is stored in the gallbladder and is released when fat enters the first part of the small intestine (duodenum) in order to aid digestion.”
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More topics Related to Duodenum


...related topic
“Agent that stimulates bile flow from the gallbladder into the duodenum.”


...related topic
“The thick, semifluid mass of partly digested food that is passed from the stomach to the duodenum.”

Coffee Enema

...as a treatment
“...Finally, the fluid of the enema stimulates peristalsis and the removal of diluted toxic bile – from the duodenum and out through the rectum...”


...the condition
“...The latter examination utilizes a swallowed string to obtain a specimen of mucus from the duodenal lumen, and the mucus is subsequently examined for the presence of the organism...”

Dyspepsia / Poor Digestion

...the condition
“...The upper GI tract consists of the organs where food is initially taken into the body and digestion begins, including the esophagus, stomach, pylorus and duodenum.  Aside from indigestion, numerous other conditions are possible in this area, some of which may cause, be caused by, or be mistaken for, indigestion...”


...relationship to Bacterial Dysbiosis
“Fecal and duodenal flora in patients with atopic eczema have been studied...”


...related topic
“...It contains the stomach, liver tip, pancreas tail, duodenum, spleen, adrenal glands, transverse colon, small intestine, the left and right kidneys, and the left and right ureters.”

Gastric/Peptic/Duodenal Ulcers

...the condition
“A peptic ulcer is a hole in the gut lining of the stomach, duodenum, or esophagus...”
...our question about Black, tarry stools
“Bleeding from an ulcer may occur in the stomach or the duodenum, and sometimes is the only symptom...”
...relationship to Esophageal Stricture (narrowing)
“A chronic ulcer causes swelling and inflammation of the gastric and duodenal tissues.  Over time, scarring may close the pylorus, the lower end of the esophagus, thus preventing the passage of food and causing vomiting and weight loss.”
...relationship to Peritonitis
“Sometimes an ulcer eats a hole in the wall of the stomach or duodenum.  Bacteria and partially digested food can spill through the opening into the sterile abdominal cavity, called the peritoneum...”

Gastrointestinal Bleeding

...our question about Black, tarry stools
“Black, tarry stools usually result from bleeding that occurs high up in the digestive tract – for example, in the stomach or first segment of the small intestine (duodenum); blood in the stomach turns black when exposed to stomach acid and enzymes...”

Giardiasis Infection

...the condition
“...The low pH in the stomach and pancreatic proteases found in the proximal small intestine promote rapid breakdown of the cysts' outer walls within minutes of reaching the duodenum.  Typically, each cyst gives rise to two 'trophozoites', which are the vegetative form of giardia; they are able to colonize and rapidly replicate in the gastrointestinal tract as well as...”

Heartburn / GERD / Acid Reflux

...relationship to Gastric/Peptic/Duodenal Ulcers
“There is a relatively high prevalence of GERD amongst patients with duodenal or gastric ulcers...”
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More topics Related to Duodenum

Helicobacter Pylori

...related topic
“...pylori is a bacterium that is found in the stomach which, along with acid secretion, damages stomach and duodenal tissue, causing inflammation and peptic ulcers...”

Helicobacter Pylori Infection

...the condition
“...H. pylori is a bacterium that lives in the stomach and duodenum.  It has a unique way of adapting to the usually harsh environment of the stomach...”


...as a treatment
“...The absorption of iron takes place in the duodenum and upper jejunum (small intestine)...”

Kaposi's Sarcoma

...the condition
“...The following types of endoscopy are used to examine different parts of the body ... esophagogastroduodenoscopy – in which a flexible tube is used to examine the esophagus, stomach and upper duodenum (upper intestine)...”

Peptic Ulcer

...related topic
“A general term for gastric ulcers (stomach) and duodenal ulcers (duodenum), open sores in the stomach or duodenum caused by digestive juices and stomach acid...”


...related topic
“...It contains the umbilicus, jejunum, ileum, duodenum, stomach, small intestines, pancreas, transverse colon, left and right kidneys, and the left and right ureters.”

Poor Small Intestine Health

...the condition
“...The small intestine is the largest part of the gastrointestinal tract and is composed of the duodenum which is about one foot long, jejunum (5-8 feet long), and ileum (16-20 feet long)...”


...related topic
“...Once through the pylorus on its way to the duodenum, the food is still only partially digested.”

Roundworm Infection

...the condition
“...Once they are in the intestine (specifically, the duodenum), the eggs hatch into larvae which penetrate the wall of the intestine and enter blood or lymph vessels and end up in the lungs...”


...the condition
“...Less common causes of steatorrhea require further diagnostic testing (e.g. duodenal aspiration for Giardia, serum gastrin for Zollinger-Ellison disease, etc...”


...relationship to Gastric/Peptic/Duodenal Ulcers
“In general the duodenum isn't as well protected with mucus as is the stomach and is more prone to ulcers...”

Subphrenic Abscess

...the condition
“...of subphrenic abscesses are "secondary" (due to a known cause), typically developing 3 to 6 weeks after abdominal surgery such as biliary surgery, appendix surgery or surgery on the stomach or duodenum.  About half of all cases are due to complications of abdominal surgery...”

Weight Loss

...as a treatment
“...malabsorptive surgery is a combination of restrictive surgery as described above, along with bypass or malabsorptive surgery, in which the stomach is connected to the small intestine, bypassing the duodenum, which is the beginning portion of the small intestine...”

Weight Loss Surgery

...as a treatment
“...Biliopancreatic diversion with a duodenal switch, or simply the "duodenal switch surgery", is less drastic but still more severe than gastric bypass surgery...”
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