Premium Nahrungsergänzungsmittel | artgerecht

Diarrhea: Causes, Symptoms and Treatment

Diarrhea means passing loose or watery stools three or more times a day. It can be acute or chronic and has many causes, ranging from infections to chronic bowel conditions.

Regular tips about health Regular tips about health

Things worth knowing about "Diarrhea"

Diarrhea means passing loose or watery stools three or more times a day. It can be acute or chronic and has many causes, ranging from infections to chronic bowel conditions.

What Is Diarrhea?

Diarrhea is defined as passing loose or watery stools three or more times within 24 hours. It is one of the most common medical complaints worldwide and can affect people of all ages. Diarrhea may be accompanied by abdominal cramps, bloating, nausea, and an urgent need to use the toilet. While it is often short-lived and harmless, persistent diarrhea can lead to serious complications such as dehydration.

Causes

Diarrhea is classified as either acute (lasting fewer than 4 weeks) or chronic (lasting 4 weeks or longer). The causes differ between these two forms.

Common Causes of Acute Diarrhea

Infections: bacteria (e.g., Salmonella, Campylobacter), viruses (e.g., norovirus, rotavirus), or parasites (e.g., Giardia lamblia)
Food poisoning: caused by contaminated food or water
Medications: especially antibiotics or laxatives
Traveler's diarrhea: common when visiting regions with lower hygiene standards
Stress and emotional upset

Common Causes of Chronic Diarrhea

Irritable bowel syndrome (IBS)
Inflammatory bowel diseases such as Crohn's disease or ulcerative colitis
Food intolerances such as lactose intolerance or celiac disease (gluten intolerance)
Hyperthyroidism (overactive thyroid)
Microscopic colitis or colorectal tumors

Symptoms

In addition to loose or watery stools, diarrhea may be accompanied by:

Abdominal pain and cramping
Bloating and flatulence
Nausea and vomiting
Fever (in cases of infection)
Blood or mucus in the stool (in more serious conditions)
Signs of dehydration: dry mouth, dizziness, reduced urination

Diagnosis

The diagnostic approach depends on the duration and severity of symptoms. Common tests include:

Stool analysis: to detect pathogens, blood, or inflammatory markers
Blood tests: inflammatory markers, electrolytes, thyroid hormones
Colonoscopy: indicated in chronic or bloody diarrhea
Abdominal ultrasound
Breath tests: for suspected food intolerances (e.g., lactose, fructose)

Treatment

General Measures

The most important step in managing diarrhea is replacing lost fluids and electrolytes to prevent dehydration. Suitable options include water, clear broth, or specially formulated oral rehydration solutions (ORS). A bland diet consisting of easily digestible foods such as toast, bananas, or cooked rice can help ease symptoms.

Medications

Loperamide: reduces bowel motility and urgency – suitable only for non-infectious diarrhea
Probiotics: may help restore gut flora and shorten the duration of diarrhea
Antibiotics: prescribed only for confirmed bacterial infections
Racecadotril: reduces excess fluid secretion into the intestine

Treating the Underlying Cause

For chronic diarrhea, treatment focuses on the underlying condition – for example, a gluten-free diet for celiac disease, specific medications for inflammatory bowel disease, or dietary adjustments for food intolerances.

When to See a Doctor

Medical attention should be sought promptly in the following situations:

Diarrhea lasting more than 2–3 days without improvement
Blood or mucus in the stool
High fever (above 38.5 °C / 101.3 °F)
Signs of dehydration (extreme thirst, little or no urination, dizziness)
Diarrhea in infants, young children, or elderly individuals
Severe abdominal pain

Prevention

The risk of infectious diarrhea can be significantly reduced by following basic hygiene practices:

Regular and thorough handwashing
Safe preparation and storage of food
Drinking clean, safe water – especially when traveling
Vaccinations (e.g., rotavirus vaccine for infants)

References

World Health Organization (WHO): Diarrhoeal disease – Fact Sheet. Available at: https://www.who.int/news-room/fact-sheets/detail/diarrhoeal-disease (2023)
DuPont, H. L.: Acute infectious diarrhea in immunocompetent adults. New England Journal of Medicine, 370(16), 1532–1540 (2014).
Schiller, L. R. et al.: American Gastroenterological Association Clinical Practice Update on the Management of Chronic Diarrhea. Gastroenterology, 158(4), 875–883 (2020).

Building Blocks for a Healthy Life

As an integrated manufacturer, we develop & produce evidence-based, patented, and non-patented formulations. We work exclusively with plant and natural extracts according to the strictest purity & quality standards.
The combination of science & modern technology with the laws of nature creates solutions consistently tailored to humans – for the highest good: health.

Most read entries

3 Posts in this encyclopedia category