Questions tagged [gastroenterology]

the branch of medicine that deals with disorders of the stomach and intestines.

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How does the duration of antibiotic course impact gut flora?

It is well-known that antibiotic use reduces the diversity of natural gut flora. Have there been any studies that look into how the magnitude of this effect may differ between longer and shorter ...
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Does psyllium husk work differently on human body when consumed with different temperature of water? If yes, what are the reasons behind it?

There are some health benefits always discussed about psyllium husk. Such as described here and here. Now some people on social media spread myths like it works better with yoghurt. It works better ...
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May subclinical Acatalasemia cause premature gray hair in an otherwise healthy human and if so, how is it normally treated?

It was written in the current version of the Wikipedia article Catalase: Low levels of catalase may play a role in the graying process of human hair. Hydrogen peroxide is naturally produced by the ...
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What is the clinical description of conduction of esophageal manometry and impedance study with particular reference to supragastric belching? [closed]

There are patient side descriptions of these procedures. What is the clinical description of how to conduct these procedures? I live in Japan, and even in the big hospital medical suite where I am ...
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Endoscopy/colonoscopy done by a non-gastroenterologist

Are there any good reasons to want to have a (precautionary) endoscopy/colonoscopy examination - with associated diagnoses and interpretation - done by a gastro-enterologist, as opposed to a surgeon, ...
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How reliable is enteric coating on capsules?

Some probiotics are labelled "gastro resistant coating". Based on my limited knowledge and research, they are enteric capsules and they work based on changing PH in the GI tract. The first ...
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Is there any known correlation between stomach worms and fungal skin infections?

Is there any literature which points to correlation between worm infestation of the intestines and fungal infection of the skin? The possible mechanism being the stomach worms disrupting natural ...
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-1 votes
1 answer
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Can tablets containing iron or high fibre food trigger anxiety and hypermetabolism?

Is there any well-understood way or any info, in the medical literature, regarding the possibility of iron tablets and high fibre foods triggering anxiety, panic attacks and hypermetabolism ...
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1 vote
2 answers
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How can people supplement minerals when they have IBD?

People who are already suffering from Inflammatory Bowel Disease(IBD) are at risk of developing nutritional deficiency. One clinical option is to supplement them. But as their gut is already ...
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How prevalent are gastrointestinal parasites in gay men?

I was doing some research on gay health outcomes and came across some very old studies with very high prevalence rates for gastrointestinal parasites among gay men. (https://jcm.asm.org/content/24/4/...
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What protective mechanisms against lead absorption are present in adults but not fully developed in children?

According to this summary, adults typically absorb up to 20% of ingested lead after a meal, whereas children typically absorb up to 50% of ingested lead after a meal. When I search to try to find out ...
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Does the stool test for Helicobacter pylori show only acute infections?

There are four options when being tested for Helicobacter pylori - blood test, stool test, breath test and scope test. (Helicobacter pylori (H. pylori) infection) Scope test is definitely the most ...
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How can a ruptured ulcer all the way in the duodenum, cause kidney failure?

The famous Nobel Prize winning physicist is said to have died because "A ruptured duodenal ulcer caused kidney failure", leading to his death 12 days later. I understand that the kidney ...
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Why does congenital duodenal obstruction cause a "double bubble" sign to appear on imaging?

Duodenal obstruction is caused by failure of recanalization of the duodenum during embryological organogenesis. It classically presents as a "double bubble" sign on x-ray or ultrasound. I understand ...
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What element of black tea is laxative?

This might be a little bit gross but I hope members will put up with it. Tea works as laxative, exactly which element or ingredient of black tea works as laxative, to be specific, which element or ...
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What is the size of biopsy specimens pinched from normal colon mucosa?

To investigate certain types of inflammation, during a colonoscopy, a doctor might pinch off normal-looking mucosa at a number of locations for subsequent microscopic examination. What is the size of ...
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What GI issues need to diagnosed/treated early lest they cause permanent damage?

What GI issues need to be diagnosed/treated early lest they cause permanent damage or become unrecoverable. An example would colon cancer. The question is about which possible diagnoses need to be ...
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Are there drugs that help to digest wheat?

It understand that there are some sugars in wheat that some people cannot digest and that would risk them in IBS but I don't ask about drugs that fight IBS, which make intestines move slower and stuff ...
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Preventing NSAID-associated GI bleeding

Are there ~simple means to reduce risk of GI (gastro-intestinal) bleeding associated with NSAIDs (non-steroidal anti-inflammatory drugs)(ie aspirin) - besides the common-sense answers?: Take with ...
4 votes
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Effect of laxatives on pre-existing hard stool

I wonder if laxative medicines are able to soften pre-existing hard stool in colon or merely prevent them from being formed. I searched on the internet but found no helpful information. Sorry if the ...
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Acceptable Macronutrient Distribution Range [closed]

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2674146/ I found some papers suggesting AMDR is not the optimum and it is too high on carbohydrates in particular. Is it generally safe to undergo a 27....
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Colorectal examinations

This question was sparked by this discussion about the sigmoid and rectum. When looking at the colorectal medical examination techniques, for want of a better term, there are the sopical examinations (...
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Is an annual stomach x-ray (barium meal) an acceptable radiation risk for a resident of Japan?

I live in Japan. Here, it is common for an annual health checkup to include a barium meal stomach x-ray, especially for people over 35, but sometimes younger. A gastroenterologist told me that this ...
3 votes
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Hitler's physician Morrel prescribed a drug that contained e. coli -- was this unusual in those days?

It is my understanding that Hitler's physician, T. Morell, who was essentially a "feel good" like Max Jacobson (although maybe still acting within accepted practice in the days when powerful drugs ...
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Lactulose and dental decay

Lactulose is an osmotic laxative made from the milk sugar lactose. It is non-absorbable in the gut, and so draws water into the gut by osmosis, with the aim of alleviating constipation. I have heard a ...
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Bismuth subsalicylate (Pepto-Bismol) vs. Dimenhydrate (Gravol)

Pharmacy Times doesn't distinguish them. familydoctor.org (sponsored by American Academy of Family Physicians) states: Bismuth subsalicylate (2 brand names: Kaopectate, Pepto-Bismol). It may ...
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1 vote
1 answer
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What check is done to diagnose GERD?

Recently I looked at my personal health file and saw that I was diagnosed with GERD some 6 years ago. This seemed strange to me since I did not remember any occasion in which I was positively ...
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Is Pentasa an immunosuppressive drug?

Is Pentasa an immunosuppresive drug? I want to know because my brother has been diagnosed with Crohn's Disease.
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Loperamide POM Medication

If you look at the following image from Pharmacy2u, this box of Loperamide Tablets is POM (See the POM in a rectangle on the left). Image from Pharmacy2u When you consider that this box of 2mg ...
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Can a CT scan of the abdomen help find unhealthy mucosal lining in the small intestine?

What's the role of CT imaging in the diagnosis of small bowel mucosal diseases?
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Can your rectum atrophy after a long time of inactivity?

A colectomy and subsequent ileostomy are surgeries that involve removing the large bowel (colon) and creating an opening in the abdomen for food waste to go through the small intestine and out of the ...
2 votes
2 answers
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Best type of specialist who performs colonoscopies

I googled for the best type of specialist who performs colonoscopies and it says gastroenterologist [link 1, link 2]. My questions: Why don't they mention colorectal surgeon? One would think that a ...
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Why stomach ulcer need more than one antibiotic at the same time?

Almost all treatment recommendation for gastritis, duodenitis or peptic ulcer that has Helicobacter pylori, calls for 2 or 3 antibiotic at the same time, why is that ? Why not use a single effective ...
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Does pepcin play a role in GERD/LPR?

Two popular books ("Dropping Acid" by Dr. Jamie Koufman and "The Acid Watcher Diet" by Dr. Jonathan Aviv) claim that tissue damage in GERD and LPR is caused by the digestive enzyme pepcin. In their ...
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26 votes
2 answers
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Why should I avoid milk when on antibiotics?

I'm taking antibiotics (specifically, amoxicillin clavulanate) to fight off an ear infection. As she prescribed my antibiotics, my doctor told me not to eat milk products for a few days, then only eat ...
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Elderly Father Takes Prevacid for last 20 years, seems to do more harm, how to stop [closed]

Note: Requesting guidance on how to approach, not medical advice. My Dad is in his early 70s and has taken Prevacid once a day for nearly 20 years. After eating food would come up after an hour. ...
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1 answer
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Why does gas cause pain?

If I have gas in my intestines, why does it hurt? The mayo clinic has a lot of words, that describe the how and why you get gas. Anything that causes intestinal gas or is associated with ...
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Do toilet bleach tablets prevent the spread of enteric diseases?

I am not a huge fan of adding bleach tablets to toilets, but my wife and I have experienced an unfortunate increase in stomach-related problems since we had children. Despite our attempts to regularly ...
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How does gallbladder removal affects fat digestion?

If I understand correctly, the sole purpose of the gallbladder is to store extra bile that is opportunely released in order to properly digest fat. When the gallbladder is removed, what happens when ...
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What is "lax cardia"? [closed]

My upper GI endoscopy report impression says: lax cardia, grade a relux oesophagitis, erosive gastritis. What is "lax cardia"? My symptoms: abdomen pain around belly button, weight loss, belching etc....
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1 answer
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Why do a follow-up colonoscopy?

I had a colonoscopy recently and the doctor removed a polyp. He told me I should get follow-up in six months. I asked him why, since he already determined that it wasn't cancerous and these things ...
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Eating egg shells: advantages v.s. disadvantages?

I am an engineer and a scientist, but not in the field of medicine or health. Partial answers/comments are welcome. Some of my family members start eating egg shells for the sake of obtaining ...
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Do proton pump inhibitors (PPIs) shut down all the proton pumps in all cells across our body?

It's known that proton pumps exist in all cells in our bodies and help us to get rid of damaged proteins (present a disposal system). PPIs (omeprazole, pantoprazole, esomeprazole, lansoprazole and ...
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Immunity after a GI bug

Common wisdom is that once you've been infected with a cold virus, you are then immune to that specific virus. Obviously there are hundreds of cold viruses, so you can keep getting colds. Does the ...
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How do we know that our esophageal sphincters are malfunctioning in acid reflux without endoscopy?

If you have acid reflux that gives you severe level of mouth ulcers in such a way that you are getting multiple clusters of canker sores on your tongue and you can't eat or sleep anymore, does that ...
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What is alkaline food's actual impact on internal ph regulation?

Dozens of sites throughout the internet nowadays, seemingly concerning nutrition, essentially try to convey the same message: alkaline food helps to regulate your internal pH. Having read some ...
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What medications (whether prescription or OTC) or home-remedies are used for stool-softeners or laxatives (to counteract constipation)?

Because I have been dealing with a lot of physical pain, I have been taking a lot of pain medication, which has the common side of effect of constipation. Obviously, this leads to painful defecation ...
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What happened to all the centers for hiatus hernia?

I have been doing much research for years on the esophageal hiatal hernia. I found exactly one paper on-line (from the US military, I believe, I cannot relocate it) that mentioned in passing that ...
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How long a certain food takes for making intestinal gas?

I've some symptoms of IBS. I want to know some stuff on the basis of my symptoms that I've observed. I know Apples, Melons or milk can cause gas. For instance, before quitting milk, when I would ...
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1 answer
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What is the actual reason behind intestinal gas? [closed]

I have some symptoms of IBS. And the most irritating problem I'm dealing with is intestinal gas. I'm taking medicines but they don't seem working. Neither it is curing IBS nor the gas problem. I'm ...
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