Abdominal pain and changes in bowel movements

Diarrhea

Related terms · loose stools · watery diarrhea

Diarrhea is a condition of having looser stools more frequently than usual. The causes that need to be checked differ between diarrhea that appears suddenly for a few days and diarrhea that continues for several weeks.

Reviewed by Korean Medicine Doctor Yeon-seung Choi · Last updated 2026-08-26

Overview

Diarrhea: Please check these three things first

  • For diarrhea, you must look at the onset, dehydration, and bleeding, in addition to the consistency and frequency.
  • Diarrhea that wakes you up at night, weight loss, or bloody stools Irritable Bowel Syndromeare not dismissed as simple symptoms.
  • In Korean medicine treatment, after necessary evaluations for infection and inflammation, we examine how diarrhea changes according to food, cold exposure, tension, and fatigue.

Definitions and Distinctions

What is diarrhea?

Infections and medications, Food intolerance, gut-brain interactions, and inflammatory diseases are among the various causes. We look at the duration, dehydration, pain, and bleeding, as well as the shape of the stool. Diarrhea is a state of having looser stools more frequently than usual. Diarrhea that appears suddenly for a few days and diarrhea that lasts for several weeks require checking for different causes.

Easily Confused Terms
The diarrhea-predominant type of Irritable Bowel Syndrome (IBS) is abdominal paina pattern of recurring bowel movement changes. If you wake up at night with diarrhea, or if there is bloody stool, fever, or weight loss, other causes are checked first.
Why this is checked during the medical evaluation
We narrow down the range of causes by examining the start date, daily frequency, the urgency of the urge to defecate, recent antibiotic use and travel, and recurring relationships with specific foods.
Information to prepare
If you experience dehydration where urine output decreases, you feel dizzy, or it is difficult to even drink water, or if there is bloody stoolBlack stools, high fever, and severe abdominal pain, seek medical evaluation without waiting.

More details

Connecting diarrhea to my symptoms

Check the consistency, duration, and whether it wakes you up at night

Diarrhea that occurs suddenly within a few days and diarrhea that recurs over several weeks have different causes to verify. Please record the daily frequency, stool shape, whether it starts immediately after meals, and whether you go to the bathroom during sleep. Also, include recent antibiotic use, travel, and changes in diet.

Do not delay identifying the cause if there is dehydration or bleeding

If urine output decreases, you feel dizzy, or it is difficult to drink water, dehydration may be progressing. If bloody stools, black stools, high fever, severe abdominal pain, or weight loss occur together, seek medical evaluation immediately rather than waiting for it to be IBS. Once the condition is stable, we examine the recurring patterns and the scope of Korean herbal medicine treatment.

Acute diarrhea and recurring diarrhea have different recording periods and questions

If it started suddenly, first check for travel, eating out, contact with infected persons, antibiotics, and fluid intake. If it has recurred for several weeks, record nocturnal diarrhea, weight, menstruation, medications, and the amount of food consumed. Before repeatedly taking antidiarrheals on your own, you must check for bloody stools, high fever, severe abdominal pain, and dehydration.

Frequently Asked Questions

Common questions when looking into diarrhea

Does it require treatment if I have diarrhea when I am nervous?

If these symptoms recur before going out or giving presentations and limit your daily life, medical evaluation is necessary. We determine treatment goals by examining the sequence in which abdominal pain, urgency, sleep disturbances, and throbbing sensations begin, including the gut-brain interaction.

Can I take antidiarrheals first when I have diarrhea?

It depends on the cause and condition. If you have a high fever, bloody stools, severe abdominal pain, or suspect an infection, seek medical evaluation before taking medication on your own. If you have previously prescribed medication, check the guidelines for its use.

Gastrointestinal Glossary

Compare similar terms here

You can proceed to a detailed explanation after confirming the simple meaning.
UrgencyBowel urgency refers to a state where the urge to have a bowel movement comes on suddenly and strongly, making it difficult to hold until reaching a restroom. Separate from the frequency of diarrhea, this can place a significant burden on daily life.Bristol Stool ScaleThe Bristol Stool Chart is a recording method that classifies stool shape into Types 1 through 7, ranging from hard lumps to watery stools.Food IntoleranceFood intolerance broadly refers to a condition where discomforts such as abdominal pain, gas, or diarrhea occur during the process of digesting or processing certain foods.Irritable Bowel SyndromeIrritable Bowel Syndrome is a gut-brain interaction disorder characterized by recurrent abdominal pain related to bowel movements, accompanied by changes in stool frequency or form.

Read More

Check guides where this term is used

Evidence and Update Information

The definitions and safety standards in the materials below were referenced.

  1. NIDDK: DiarrheaThe causes of acute and persistent diarrhea, as well as symptoms of dehydration and bleeding, have been verified.
  2. NIDDK: Symptoms and Causes of DiarrheaThis was referenced to distinguish between acute and chronic diarrhea and symptoms of dehydration and bleeding.
Summary and review information for this page

Reviewing Medical Staff

Choi Yeon-seung, Doctor of Korean MedicineChief Director · Editor of Korean Medicine Atlas · BRC Researcher

Page Summary

Diarrhea is a condition of having looser stools more frequently than usual. The causes that need to be checked differ between diarrhea that appears suddenly for a few days and diarrhea that continues for several weeks.

What this page covers

What is explained
What should be checked first regarding the meaning of diarrhea?
What situations are covered
Causes vary, including infections, medications, food intolerances, gut-brain interaction, and inflammatory diseases.
What distinctions are made
Meaning of diarrhea: Causes vary, including infections, medications, food intolerances, gut-brain interaction, and inflammatory diseases. We examine not only the shape of the stool but also the duration, dehydration, pain, and bleeding.
How should this be understood
Diarrhea that appears suddenly for a few days and diarrhea that lasts for several weeks require checking for different causes.

Key Points

  • Meaning of diarrhea: Causes vary, including infections, medications, food intolerances, gut-brain interaction, and inflammatory diseases. We examine not only the shape of the stool but also the duration, dehydration, pain, and bleeding.
  • Difference from similar terms: The diarrhea-predominant type of Irritable Bowel Syndrome (IBS) is characterized by recurring abdominal pain and changes in bowel movements. If you wake up at night with diarrhea or experience bloody stools, fever, or weight loss, other causes are checked first.
  • Reason for checking during medical evaluation: We narrow down the range of causes by examining the start date, daily frequency, degree of urgency, recent antibiotic use and travel, and recurring relationships with specific foods.

References cited on this page

Make a Medical Inquiry

Gastrointestinal Glossary

View Detailed Description →