Diarrhea
Diarrhea refers to frequent loose or watery bowel movements. It can occur suddenly and last a short time (acute diarrhea) or persist for several weeks (chronic diarrhea). Most cases improve on their own, but persistent diarrhea may indicate an underlying digestive condition.
Key Takeaways
- Diarrhea involves frequent loose or watery stools.
- Common causes include infections, medications, food intolerance, and digestive diseases.
- Most short-term cases resolve without treatment.
- Persistent diarrhea should be evaluated by a gastroenterologist.
Common Symptoms
Symptoms often depend on the cause of diarrhea but may include:
- Frequent loose or watery stools
- Abdominal cramps or pain
- Bloating
- Nausea
- Urgent need to have a bowel movement
- Dehydration in more severe cases
Types of Diarrhea
- Acute diarrhea: lasts a few days and is often caused by infection or food-related illness.
- Persistent diarrhea: lasts several weeks and may be related to infection or digestive disorders.
- Chronic diarrhea: continues for more than four weeks and may be associated with conditions such as IBS or Crohn’s disease.
Common Causes
Diarrhea can occur for many reasons. Some of the most common causes include:
- Viral or bacterial infections
- Food poisoning
- Food intolerances such as lactose intolerance
- Medications including antibiotics
- Digestive disorders such as irritable bowel syndrome
- Inflammatory bowel diseases including ulcerative colitis and Crohn’s disease
How Diarrhea Is Diagnosed
If diarrhea is persistent or severe, your doctor may recommend tests to determine the cause. These may include:
- Blood tests
- Stool testing
- Imaging studies
- Colonoscopy in some cases
Treatment Options
Treatment depends on the cause of diarrhea and its severity. Management may include:
- Hydration and electrolyte replacement
- Dietary adjustments
- Medications when appropriate
- Treatment of underlying digestive conditions
When to Seek Medical Care
You should seek medical evaluation if diarrhea:
- Lasts more than several days
- Is accompanied by severe abdominal pain
- Includes blood in the stool
- Causes signs of dehydration such as dizziness or weakness
- Occurs with fever
Frequently Asked Questions
What causes diarrhea?
Diarrhea can be caused by infections, food intolerance, medications, digestive diseases, or food poisoning.
How long should diarrhea last?
Acute diarrhea usually lasts a few days. Diarrhea that continues longer may require medical evaluation.
Can diarrhea cause dehydration?
Yes. Severe or prolonged diarrhea can cause dehydration, especially in children and older adults.
When should I see a doctor for diarrhea?
You should seek medical care if diarrhea persists, worsens, includes blood in the stool, or occurs with fever or dehydration.
Can digestive disorders cause chronic diarrhea?
Yes. Conditions such as IBS, Crohn’s disease, and ulcerative colitis can cause ongoing diarrhea.
Related Resources:
IBS | Crohn’s Disease | Ulcerative Colitis | Colonoscopy
