Austin Emergency Center

Person holding toilet paper roll, experiencing digestive discomfort.

Diarrhea: Causes, Symptoms & Treatment

Diarrhea is a common digestive condition that affects millions worldwide, often causing discomfort and dehydration. It happens when the intestines fail to absorb water properly, leading to frequent, loose, or watery stools. While short-term diarrhea may not be serious, persistent cases can signal an underlying problem that requires prompt medical attention.

At Anderson Mill emergency room, patients receive immediate care and evaluation to identify the root cause of diarrhea. Understanding what diarrhea is, along with its main causes, symptoms, and treatments, helps prevent complications and promotes faster recovery.

What Is Diarrhea?

Diarrhea refers to the passage of loose or digestive imbalance three or more times a day. It’s usually the body’s way of flushing out harmful bacteria, viruses, or toxins from the digestive system. Most cases last only a few days and resolve naturally, but ongoing diarrhea may suggest a chronic digestive condition.

In 2021, diarrheal diseases accounted for approximately 1.17 million deaths globally, marking a significant decline from previous years. Hydration and balanced nutrition are key to recovery. However, if diarrhea continues for more than a week, it’s crucial to visit a medical professional for evaluation and treatment.

What Causes Diarrhea 

Diarrhea arises from multiple factors that disrupt normal digestion. From bacterial infections to sudden dietary changes, understanding the trigger helps manage symptoms effectively. External conditions, like exposure to contaminated water or new environments, can also play a significant role in causing temporary digestive upset.

Infections

One of the most common causes of diarrhea is infection from viruses, bacteria, or parasites. Contaminated food or water often carries pathogens such as E. coli, Salmonella, or Norovirus. These infections irritate the intestinal lining, causing rapid stool passage and abdominal discomfort.

Common infection sources include:

  • Poorly cooked or contaminated food.
  • Untreated water.
  • Contact with infected individuals.

Food Intolerance and Sensitivity

Some people experience diarrhea after consuming foods their body struggles to digest. Lactose intolerance and gluten sensitivity are leading examples. These intolerances cause inflammation or irritation in the gut, resulting in loose stools, gas, and bloating. Avoiding trigger foods and adjusting your diet can greatly reduce episodes of diarrhea.

Medications and Digestive Disorders

Certain antibiotics, magnesium-containing antacids, or cancer drugs can upset the digestive balance, leading to diarrhea. Additionally, digestive disorders like Irritable Bowel Syndrome (IBS) or Inflammatory Bowel Disease (IBD) can cause long-term diarrhea by affecting intestinal function. If medication or a chronic illness is suspected, consult a healthcare provider for a tailored treatment plan.

Symptoms of Diarrhea

Symptoms can range from mild discomfort to intense bowel disturbances, depending on the underlying cause. Early recognition allows timely interventions, reducing the risk of prolonged digestive distress and nutrient imbalance. In some cases, symptoms may develop gradually, making it harder to trace the exact trigger. Tracking your eating habits and recent activities can help identify patterns and guide effective treatment.

Frequent, Loose Stools

This is the main symptom of diarrhea. Stools may appear watery, soft, or unusually frequent, often accompanied by an urgent need to use the restroom. In some cases, the stool may have a strong odor or contain mucus, indicating irritation in the intestines. The frequency and consistency can also help doctors assess whether the cause is infectious, dietary, or related to a chronic condition.

Abdominal Pain and Cramping

Muscle contractions in the intestines can cause discomfort or sharp abdominal pain. These cramps usually subside once the bowel movement occurs. However, persistent or localized pain may indicate inflammation or irritation in the digestive tract. Monitoring the intensity and location of the pain can help identify whether it’s linked to infection, food intolerance, or another underlying issue.

Additional Signs of fluid loss or Infection

Along with stool changes, other signs may include:

  • Fatigue or weakness
  • Dry mouth or excessive thirst
  • Nausea and vomiting
  • Fever or chills

Diarrhea Treatments

Treatment varies based on the cause, aiming to relieve symptoms, support recovery, and prevent further complications. Prompt care also helps maintain nutrient balance and prevents prolonged digestive disruption. Severe or persistent cases require professional evaluation to address any underlying infections or chronic digestive conditions.

Rehydration and Electrolyte Balance

The most important step in treating diarrhea is replacing lost fluids. Oral rehydration solutions (ORS), clear soups, and electrolyte drinks can help restore balance and prevent dehydration. In addition, small, frequent sips are often more effective than large amounts at once, especially for children or older adults. Maintaining hydration also supports the immune system in fighting off any underlying infection.

Medications and Probiotics

Over-the-counter diarrhea medicine like loperamide (Imodium) may help reduce stool frequency in mild cases. If the cause is bacterial, doctors might prescribe antibiotics. Probiotics are also beneficial for restoring healthy gut bacteria after infection or antibiotic use.

Dietary and Lifestyle Adjustments

Avoid greasy, spicy, and dairy-heavy foods until digestion stabilizes. Instead, opt for bland foods like bananas, rice, applesauce, and toast. Proper handwashing and safe food preparation can also help prevent future episodes.

Incorporating easily digestible proteins, like boiled eggs or plain chicken, can provide necessary nutrients without aggravating the digestive system.

How Long Does Diarrhea Last?

The duration of diarrhea varies depending on its cause. Acute diarrhea typically lasts 2–3 days, while chronic diarrhea may persist for several weeks due to underlying conditions like IBS or IBD.

If diarrhea lasts longer than a few days or comes with symptoms like fever, bloody stools, or severe dehydration, seek medical help immediately. Prompt evaluation by a healthcare professional ensures proper treatment, rapid hydration, and management of any underlying digestive issues.

Take Charge of Your Digestive Health with Prompt Care

Worried about frequent loose stools or unsure how to manage diarrhea safely? Don’t wait; early attention is key to preventing dehydration and other complications. Diarrhea can develop suddenly and often disrupt daily life, but understanding its causes and taking timely action can help restore balance and comfort. Small, informed steps today can make a big difference in your digestive health.

At the Austin Emergency Center, patients receive compassionate emergency care and guidance for diarrhea and related digestive issues. Experienced physicians provide prompt evaluations, identify the underlying cause, and recommend effective treatment options tailored to your needs. With professional support and proper management, you can recover faster, prevent complications, and maintain long-term digestive wellness.

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