Diarrhea: Causes, Symptoms, Diagnosis, Treatment, Prevention, & More - Healthroid

Diarrhea: Causes, Symptoms, Diagnosis, Treatment, Prevention, & More

Mayank Pandey
Written by Mayank Pandey on September 28, 2022

Diarrhea is a condition of the digestive system where watery and loose stools are passed more frequently than normal. It can be caused by a variety of factors, including infections, food poisoning, and certain medications. Diarrhea can also be a symptom of more serious conditions such as Crohn’s disease and celiac disease.

While diarrhea is generally not a life-threatening condition, it can be very uncomfortable and may lead to dehydration if not treated properly. Treatment for diarrhea typically involves drinking plenty of fluids, eating bland foods, and avoiding dairy and high-fiber foods. In severe cases, oral rehydration solutions or antidiarrheal medications may be necessary.


There are many different causes of diarrhea, but the most common cause is a viral infection. Other causes can include bacterial infections, parasites, food poisoning, and certain medications. Diarrhea can also be a symptom of other diseases such as celiac disease or Crohn’s disease.

Diarrhea is usually caused by an infection of the gut, which can be viral, bacterial, or parasitic. The most common virus that causes diarrhea is the rotavirus, which affects infants and young children. Other viruses that can cause diarrhea include noroviruses and adenoviruses.

Bacterial infections that can cause diarrhea include Salmonella, Shigella, and E. coli.

Parasitic infections that can cause diarrhea include Giardia and Cryptosporidium.

Food poisoning can also cause diarrhea.


When you have diarrhea, your stool is loose and watery. You may also have cramping, bloating, gas, abdominal pain, and nausea. Diarrhea can be caused by a virus, bacteria, or parasites. It can also be a side effect of certain medications. If you have bloody stool or severe abdominal pain, you should see a doctor right away.


If you experience diarrhea, it is important to see a doctor to rule out any serious causes. Your doctor will likely ask about your symptoms and medical history. They may also perform a physical exam.

There are several tests that can be used to diagnose diarrhea. These include stool tests, blood tests, and imaging tests. Stool tests can help to identify the cause of your diarrhea. Blood tests can help to rule out other potential causes of your symptoms. Imaging tests may be ordered if your doctor suspects you have a blockage in your intestines. Imaging tests include a colonoscopy and an endoscopic ultrasound.


There are many different treatment options for diarrhea. Some of the most common include:

Antidiarrheal medications: These can help to slow down the movement of stool through the intestines, and can also help to reduce cramping and bloating.

Loperamide (Imodium AD) is a common over-the-counter antidiarrheal medication. Others include diphenoxylate (Lomotil) and bismuth subsalicylate (Pepto-Bismol).

Probiotics: These are live microorganisms that can help to restore the balance of good bacteria in the intestines. Probiotics can be taken in supplement form, or they can be found in some yogurts and fermented foods. Probiotic supplements typically contain a range of bacteria, including lactobacilli and bifidobacteria.

Antibiotics. These medications can be used to help treat bacterial-based diarrhea by killing the offending organisms.



Diarrhea is a common problem that can be both uncomfortable and dangerous. While it is usually not serious, diarrhea can lead to dehydration, which can be deadly. There are many things that you can do to prevent diarrhea, including:

-Avoiding food and water that may be contaminated. This is especially important when traveling to developing countries where sanitation conditions may be poor.

-Washing your hands thoroughly, especially after using the bathroom and before handling food.

-Cooking food thoroughly, especially meat and poultry.

-Avoid dairy products if you are lactose intolerant.

-Taking probiotics or eating yogurt with live cultures to promote healthy gut bacteria.

-Drinking plenty of fluids, such as water, clear soup, or sports drinks, to avoid dehydration.

Risk Factors

There are a number of risk factors that can contribute to the development of diarrhea. These include:

1. Infectious agents: Viruses, bacteria, and parasites are all common causes of diarrhea. These agents can be contracted through contaminated food or water, contact with an infected person, or exposure to contaminated surfaces.

2. Medications: Many medications can cause diarrhea as a side effect, including antibiotics, antacids, and certain cancer treatments.

3. Underlying medical conditions: Some medical conditions like celiac disease, inflammatory bowel disease, and irritable bowel syndrome can lead to chronic diarrhea.

4. Diet: Eating spicy or fatty foods can trigger diarrhea in some people. Also, sudden changes in diet or excessive intake of fiber may cause temporary bouts of diarrhea.


Dehydration is the most common complication of diarrhea. It occurs when your body loses more fluids than it takes in. This can cause your blood pressure to drop and make you feel faint or dizzy. You may also have trouble urinating, and your skin may look dry and wrinkled.

If dehydration is not treated, it can lead to serious problems such as kidney failure, seizures, or coma. Diarrhea can also cause electrolyte imbalances. These occur when the levels of minerals such as sodium, potassium, and chloride in your body become too high or too low. Electrolyte imbalances can cause irregular heartbeat, confusion, muscle weakness, and even death.

Diarrhea can also lead to other complications such as malnutrition. This occurs when your body does not get enough nutrients to function properly.

When to see a doctor?

When diarrhea strikes, it can be difficult to know when to seek medical attention. In general, diarrhea is not a cause for concern and will resolve itself within a few days. However, there are some instances when diarrhea may be a sign of a more serious underlying condition and medical help should be sought. If you experience any of the following symptoms along with your diarrhea, it is time to see a doctor:

Blood in your stool

Fever over 102 degrees Fahrenheit

Signs of dehydration such as excessive thirst, dry mouth, or decreased urination

Diarrhea lasting more than three days

Abdominal pain so severe that you cannot sit still or get comfortable

If you have any concerns about your diarrhea, do not hesitate to reach out to your doctor for guidance.


When it comes to diarrhea, there are a few things that you should keep in mind. First and foremost, it is important to stay hydrated. This means drinking plenty of fluids, preferably clear or ice-cold water. You can also drink clear broths, sports drinks, and juices. Avoid caffeine and alcohol, as they can make dehydration worse. Secondly, be sure to replenish your electrolytes by taking a sports drink or eating foods high in potassium, such as bananas. Lastly, you may want to consider taking an over-the-counter medication like loperamide to help slow down your bowel movements and make them less frequent.

Published on September 28, 2022 and Last Updated on September 28, 2022 by: Mayank Pandey

Mayank Pandey
Written by Mayank Pandey on September 28, 2022

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