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Gastroenterology

Expert answers from Gastroenterology physicians on health concerns and treatment options

Questions & Answers

800 articles

Q

Why does bowel pain increase after eating?

Bowel pain that increases after eating usually happens because digestion triggers the gastrocolic reflex, increasing intestinal contractions that can hurt when the gut is sensitive or inflamed. Common contributors include IBS and visceral hypersensitivity, gas from fermentable foods, motility changes, and especially inflammatory bowel disease, while less commonly reduced blood flow after meals can cause severe pain. Because some causes need timely treatment, seek care for red flags like blood in stool, weight loss, fever, anemia, or pain that wakes you, and see the complete guidance with next steps below.

Q

Why does chronic diarrhea cause dehydration?

Chronic diarrhea causes dehydration because frequent, rapid, watery stools prevent the intestines from reabsorbing fluid and flush out large amounts of water and electrolytes, so fluid losses outpace what you can take in. Losses of sodium, potassium, chloride, and bicarbonate make it harder for the body to maintain blood volume and organ function, increasing risk if diarrhea persists; there are several factors and red flags to consider, so see the complete details below to guide safe next steps.

Q

Why does Crohn’s abdominal pain come and go in adults?

Crohn’s abdominal pain often comes and goes because the disease flares and then quiets, with changing inflammation that affects gut nerves and muscle activity, along with strictures, digestion and microbiome shifts, stress, medication effects, and overlapping conditions like IBS or food intolerances. There are several factors to consider; see below for key red flags that need urgent care, how doctors distinguish active inflammation from other causes, and practical steps you can take to reduce pain swings.

Q

Why does Crohn’s cause diarrhea even without eating?

Crohn’s can cause diarrhea even when you have not eaten because ongoing immune inflammation makes the intestines secrete fluid, reduces water reabsorption, triggers bile acid malabsorption if the ileum is involved, and speeds gut movement, so loose stools can occur day and night. There are several factors to consider. See below for key warning signs that need urgent care, how to tell if this points to active disease, and evidence based treatments and next steps to discuss with your doctor.

Q

Why does Crohn’s pain move around the abdomen?

Crohn’s pain often moves because inflammation can involve different parts of the bowel at different times, intestinal motility and gas shift discomfort along the tract, and shared nerve pathways create referred pain; scar-related narrowing and stress can also make pain feel migratory. There are several factors to consider. See below to understand more, including red flags that need urgent care and practical next steps like symptom tracking and when to talk with your doctor.

Q

Why does IBD abdominal pain come after eating?

Abdominal pain after eating in IBD often occurs because inflamed, hypersensitive intestines overreact to normal digestion. Stronger post-meal contractions, gas and bloating, irritation of ulcers, and pressure at narrowed segments called strictures can all trigger cramping. Timing and specific food triggers can help localize the problem, and red flags like severe or worsening pain, vomiting, fever, blood in stool, weight loss, or signs of blockage need urgent care; for complete guidance, practical tips, and next steps, see below.

Q

Why does IBD affect energy levels so badly?

There are several factors to consider: chronic inflammation diverts energy and triggers cytokines, while anemia, poor nutrient absorption, sleep disruption from pain or urgency, dehydration, medication side effects, and stress all compound fatigue. Many of these causes are treatable and some warrant prompt care, so see below for the full breakdown, warning signs, and how to decide your next steps with your healthcare team.

Q

Why does inflammation affect bowel movements?

Inflammation changes bowel movements through several mechanisms: it can speed up or slow gut motility, damage the intestinal lining that absorbs water, trigger extra fluid and electrolyte secretion, irritate gut nerves, and disrupt gut bacteria, which can cause diarrhea or constipation, urgency, cramping, mucus or blood, and dehydration. There are several factors to consider; see below to understand more. In conditions like IBD these changes are visible and can flare and remit, while IBS does not show tissue damage, and the differences, red flags, and when to seek care are explained below to help guide your next steps.

Q

Why does inflammation cause bleeding?

Inflammation can cause bleeding by weakening and making blood vessels leaky, breaking down tissue into erosions or ulcers that expose vessels, and interfering with normal clotting. There are several factors to consider, including that bleeding is common in IBD but not typical of IBS, and knowing warning signs and treatment options can guide next steps; see below for details.

Q

Why does my gut feel inflamed all the time?

There are several factors to consider. That constant “inflamed” feeling is most often due to IBS and heightened gut sensitivity along the gut brain axis, so normal gas, stretching, meals, or stress can feel painful even when tests look normal. Other causes like food intolerances, SIBO, medication side effects, pelvic floor dysfunction, or hormonal shifts can overlap, and red flags like weight loss, blood in stool, fever, persistent vomiting, anemia, or night-time symptoms need urgent care; see below for important details, an IBS symptom check, and practical next steps on diet, stress, sleep, and targeted medicines to discuss with your clinician.

Q

Why does my gut feel inflamed every morning?

There are several factors to consider; morning gut discomfort is commonly from normal overnight physiology, diet timing, stress, constipation, reflux, or IBS, and less often from true inflammation like IBD. See below for key details that could change next steps, including simple fixes, how to tell IBS from IBD, and urgent red flags such as blood in stool, unexplained weight loss, persistent nighttime pain, fever, or weeks of diarrhea that should prompt medical care.

Q

Why does my stomach hurt before a bowel movement IBS?

Stomach pain that builds before a bowel movement in IBS is common and usually comes from strong or uncoordinated gut contractions, a sensitive gut-brain connection, trapped gas and pressure, and an exaggerated gastrocolic reflex after eating; the pain often eases once you pass stool. There are several factors to consider. See below for common triggers and practical relief steps, plus warning signs that are not typical for IBS like blood in stool, unexplained weight loss, fever, pain that wakes you, persistent vomiting, anemia, or a sudden change after age 50, which should prompt a doctor visit.

Q

Why does ulcerative colitis cause constant fatigue?

Ulcerative colitis can cause constant fatigue because chronic inflammation drains energy and disrupts sleep and brain signaling, while anemia or nutrient deficiencies reduce oxygen and energy production; medications and ongoing stress can add to the exhaustion, even in remission. There are several factors to consider. See below to understand more, including red flags that need urgent care and practical next steps like targeted blood tests, sleep and mental health review, and treatment adjustments.

Q

Why does ulcerative colitis cause frequent bathroom trips?

Frequent trips happen because chronic inflammation and ulcers in the colon and rectum disrupt water absorption and stool storage, speed up and uncoordinate colon contractions, and irritate rectal nerves, causing diarrhea and intense urgency even for small amounts of stool, gas, or mucus. There are several factors to consider, including rectal involvement, mucus or blood, flare versus remission, and stress effects. See below for the complete answer, including warning signs like dehydration or anemia and what steps to take with your healthcare team.

Q

Why is IBS more common in women?

Women are diagnosed about 1.5 to 2 times more often, likely due to hormone effects on the gut, sex differences in gut brain communication and pain processing, slower colon motility, immune differences, more common overlapping conditions like pelvic floor dysfunction and endometriosis, and greater stress exposure and health seeking that increase detection. There are several factors to consider; see below for how symptoms vary with the menstrual cycle, pregnancy, and menopause, which red flags mean you should see a doctor, and the full set of treatment options you can discuss next.

Q

Women experiencing chronic diarrhea

Chronic diarrhea in women means loose or watery stools lasting 4 weeks or more and can stem from IBS-D, IBD, hormonal changes, food intolerances like lactose or celiac disease, lingering infections, or medications. There are several factors to consider; see below to understand red flags that need prompt care such as blood, weight loss, fever, nighttime symptoms, dehydration, or severe pain, and to learn about evaluation, symptom tools, and practical steps that can guide your next healthcare decisions.

Q

Women misinterpreting bowel disease symptoms

Women often misinterpret bowel disease symptoms because common issues like periods, stress, or diet can mimic early IBD and get mistaken for IBS. Persistent diarrhea, rectal bleeding, weight loss, fatigue, or pain that wakes you at night are red flags that deserve medical evaluation. There are several factors to consider. See below for the full list of symptoms, how hormones and life stages can obscure IBD, the differences between IBS and IBD, and clear next steps for testing and advocating for timely care.

Q

Can I leave IBD untreated?

Leaving IBD untreated is generally not recommended; even when symptoms seem mild, silent inflammation can progress and cause irreversible bowel damage, higher chances of surgery, nutrient deficiencies, and increased colorectal cancer risk, along with problems in the joints, skin, eyes, and liver. There are several factors to consider, and treatment can be stepwise and tailored; see below for important details, warning signs that need prompt care, and how to work with a clinician to choose the safest next steps.

Q

Can IBS be cured permanently?

No, IBS cannot be cured permanently. Many people achieve long-term control or remission with personalized diet changes, stress-focused therapies, targeted medications, and healthy habits, and IBS is not life threatening nor does it turn into IBD. There are several factors to consider; see below to understand more, including how to tell IBS from IBD, the red flag symptoms that need urgent care, and practical next steps to tailor your management.

Q

Can people with IBD live a normal life?

Yes, many people with IBD live full, active, and productive lives by managing the condition with modern treatments, regular follow up, and practical daily routines tailored to their needs. There are several factors to consider; see below for key details on flares and remission, mental health support, diet and exercise, work and school accommodations, family planning, serious warning signs that need urgent care, and how to tell IBD from IBS, which can guide your next steps.

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