How can you tell if diarrhea is viral or bacterial?

The type of gastrointestinal symptoms is a clue to the type of infection. Viral infection generally produces diarrhea without blood or mucus and watery diarrhea is a prominent symptom. Conversely, a person is more likely to have diarrhea with mucus and blood in bacterial diarrhea.


How do I know if my diarrhea is viral?

Viral gastroenteritis
  1. Watery, usually nonbloody diarrhea — bloody diarrhea usually means you have a different, more severe infection.
  2. Nausea, vomiting or both.
  3. Stomach cramps and pain.
  4. Occasional muscle aches or headache.
  5. Low-grade fever.


How many days does viral diarrhea last?

The illness lasts for 3 to 7 days and is most common in fall and winter. Norovirus. This is the most common cause of adult infections and the virus that's usually responsible for outbreaks on cruise ships. Symptoms last from 1 to 3 days and can occur any time of the year.


Will bacterial diarrhea go away on its own?

Bacterial gastroenteritis will often clear up on its own without any treatment. However, a person may need to rest and drink plenty of water to replace fluid lost through vomiting or diarrhea.

How long does it take for bacterial diarrhea to go away?

Bacterial gastroenteritis usually lasts for 1 to 3 days. In some cases, infections can last for weeks and be harmful if left untreated. Seek treatment as soon as you show symptoms of an infection to stop the infection from spreading.


Infectious Diseases A-Z: How to tell if your upset stomach is a viral infection



Does diarrhea mean your body is getting rid of infection?

It is your body's way of quickly clearing viruses, bacteria, or toxins from the digestive tract. Since most cases of acute diarrhea are viral, the symptoms will clear up in a few days with good home treatment. However, diarrhea that lasts longer than a few days may be a sign of a more serious health condition.

How long is too long for diarrhea?

Diarrhea is a common problem. It may last 1 or 2 days and goes away on its own. If diarrhea lasts more than 2 days it may mean you have a more serious problem.

How do you tell if you have a bacterial or viral infection?

Bacterial infections are caused by bacteria, while viral infections are caused by viruses.
...
Bacterial Infections
  1. Symptoms persist longer than the expected 10-14 days a virus tends to last.
  2. Fever is higher than one might typically expect from a virus.
  3. Fever gets worse a few days into the illness rather than improving.


Does all diarrhea need antibiotics?

Antibiotics May Be Needed

A round of antibiotics can help treat diarrhea caused by bacteria or parasites. However, if your diarrhea is caused by a virus, antibiotics will not help.

Is watery diarrhea bacterial?

Bacterial infections.

Several types of bacteria can enter your body through contaminated food or water and cause diarrhea. Common bacteria that cause diarrhea include Campylobacter link, Escherichia coli link (E. coli), Salmonella link, and Shigella link.

Will Pepto Bismol stop viral diarrhea?

In some cases, adults can take over-the-counter medicines such as loperamide link (Imodium) and bismuth subsalicylate link (Pepto-Bismol, Kaopectate) to treat diarrhea caused by viral gastroenteritis.


How do you get rid of viral diarrhea?

Lifestyle and home remedies
  1. Let your stomach settle. Stop eating solid foods for a few hours.
  2. Try sucking on ice chips or taking small sips of water often. ...
  3. Ease back into eating. ...
  4. Avoid certain foods and substances until you feel better. ...
  5. Get plenty of rest. ...
  6. Try anti-diarrhea medications.


What virus is going around that causes diarrhea?

Norovirus is the most common cause of vomiting and diarrhea, and foodborne illness. The most common symptoms of norovirus are: diarrhea. vomiting.

When should I go to the doctor for diarrhea?

Diarrhea lasts more than two days without improvement. Excessive thirst, dry mouth or skin, little or no urination, severe weakness, dizziness or lightheadedness, or dark-colored urine, which could indicate dehydration. Severe abdominal or rectal pain. Bloody or black stools.


What does infectious diarrhea look like?

Infectious diarrhea presents with nausea, vomiting, abdominal pain, fever and diarrhea that may be watery, malabsorptive, or bloody. Inflammatory diarrhea presents with fever, abdominal pain, blood and/or leukocytes in stool. Osmotic diarrhea presents with fasting, bulky, greasy, foul smelling stools, and weight loss.

What happens if you have diarrhea for more than 4 days?

But when diarrhea lasts beyond a few days into weeks, it usually indicates that there's another problem — such as irritable bowel syndrome (IBS) or a more serious disorder, including persistent infection, celiac disease or inflammatory bowel disease (IBD).

Should I take Imodium for diarrhea or let it run its course?

It's best to treat it early. Although acute diarrhea usually resolves on its own within a few days, you can get relief faster with IMODIUM products. IMODIUM products contain an active ingredient called Loperamide which works to help restore your body's natural rhythm so you can start to feel like yourself again.


How do I know if I need antibiotics?

Testing. A lab test is the only ironclad way to determine if you truly need an antibiotic. A physician can collect a sample of bodily gunk (whatever you can cough up or blow out of your nose) or take a throat swab. In general, a culture, in which bacteria are grown in the lab and tested, can take a day or two.

Will a bacterial infection go away without antibiotics?

Antibiotics are only needed for treating certain infections caused by bacteria, but even some bacterial infections get better without antibiotics.

What are 5 common symptoms of a bacterial infection?

What are the symptoms of a bacterial infection?
  • fever.
  • feeling tired or fatigued.
  • swollen lymph nodes in the neck, armpits, groin or elsewhere.
  • headache.
  • nausea or vomiting.


Should I eat if I have diarrhea?

Water is best. Drink at least 1 cup (240 milliliters) of liquid every time you have a loose bowel movement. Eat small meals throughout the day, instead of 3 big meals. Eat some salty foods, such as pretzels, soup, and sports drinks.

Why do I have diarrhea but not sick?

A wide range of problems can cause chronic diarrhea; some of the most common causes include irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn disease and ulcerative colitis), malabsorption syndromes, like celiac disease, in which food cannot be digested and absorbed, and chronic infections as well as ...

Should I go to the ER for yellow diarrhea?

When to Visit the ER for Diarrhea. You should seek medical attention as soon as possible for diarrhea with these symptoms: Diarrhea lasting more than two days. Blood or pus in the stool.


Why does my diarrhea come out like water?

Watery diarrhea means that you have liquid stools. Common causes include viral infections, such as norovirus, and bacterial infections, such as Clostridioides difficile (C. diff). Medical conditions like celiac disease and irritable bowel syndrome (IBS) also may cause it.

Are you contagious if you have diarrhea?

But acute diarrhea specifically—the kind that comes on quickly and lasts up to a few days—is usually contagious, meaning you picked it up from contact with another person who also had infectious diarrhea. In the case of infectious diarrhea, the diarrhea is both infectious and contagious.