We honor all in-network benefits for emergency services according to the Federal No Surprise Act.

Check-in Online
It's We're Open!
woman with stomach ache

What Causes Concurring Vomiting and Diarrhea

Experiencing both vomiting and diarrhea simultaneously can be a distressing and uncomfortable ordeal. This dual gastrointestinal disturbance, often referred to as "gastroenteritis," is a prevalent ailment. Understanding the causes and potential treatments is essential to managing these symptoms effectively. This blog delves into the various factors that can lead to concurrent vomiting and diarrhea.

Viral Infections

Many viral infections can cause concurrent vomiting and diarrhea. One of the most common culprits is the norovirus, which is notorious for causing gastroenteritis outbreaks on cruise ships, in schools, and other crowded settings. Rotavirus, another viral infection, primarily affects infants and young children and can lead to severe diarrhea and vomiting.

Bacterial Infections

Bacterial infections, particularly those caused by pathogens like Salmonella, E. coli, and Campylobacter, can lead to a condition called bacterial gastroenteritis. These infections typically result from consuming contaminated food or water. The toxins these bacteria produce can irritate the gastrointestinal lining, leading to vomiting and diarrhea.

Food Poisoning

Foodborne illnesses can mimic the symptoms of gastroenteritis, leading to vomiting and diarrhea. Common causes of food poisoning include undercooked or improperly stored food and contamination during food preparation. Symptoms often manifest within hours of consuming contaminated food.

Parasitic Infections

Certain parasites, such as Giardia and Cryptosporidium, can cause gastrointestinal distress, resulting in both vomiting and diarrhea. These infections are typically contracted by ingesting contaminated water or food.

Medication Side Effects

Some medications can lead to gastrointestinal side effects, including vomiting and diarrhea. Antibiotics, non-steroidal anti-inflammatory drugs (NSAIDs), and certain blood pressure medications are known to cause these symptoms in some individuals.

Food Allergies and Intolerances

Food allergies or intolerances, particularly to lactose and gluten, can lead to gastrointestinal symptoms such as vomiting and diarrhea. These reactions are often triggered by the consumption of specific foods that an individual's body cannot tolerate.

Stress and Anxiety

Stress and anxiety can wreak havoc on the gastrointestinal system. When under extreme stress, your body can respond with a "fight or flight" reaction, diverting resources away from digestion and potentially causing symptoms like nausea, vomiting, and diarrhea.

Inflammatory Bowel Disease or Syndrome

Inflammatory bowel diseases, including Crohn's disease and ulcerative colitis, can lead to chronic gastrointestinal symptoms, including diarrhea and vomiting during disease flares. These conditions are characterized by inflammation of the digestive tract.

Irritable bowel syndrome is a chronic digestive disorder that can cause a range of gastrointestinal symptoms, including both diarrhea and vomiting in some cases. Certain foods, stress, or hormonal fluctuations typically trigger IBS.

Management and Treatment

Managing concurrent vomiting and diarrhea requires addressing the underlying cause and alleviating the symptoms. In many cases, self-care measures can help, such as:


Staying well-hydrated when experiencing both vomiting and diarrhea is crucial to prevent dehydration. Sip clear fluids like water, oral rehydration solutions, and broths.


Give your body time to recover by getting plenty of rest and sleep.

Dietary Changes

Avoid solid foods for a short period and gradually reintroduce bland, easy-to-digest foods like rice, bananas, applesauce, and toast (the BRAT diet).

Over-the-Counter Medications

In some cases, over-the-counter medications like antiemetics (for vomiting) or antidiarrheals may help alleviate symptoms. However, consult a healthcare professional before using them, as they may not be suitable for all causes of vomiting and diarrhea.

Avoid Trigger Foods

If you suspect that food allergies or intolerances are the cause, eliminate potential trigger foods from your diet.

For severe or prolonged cases of concurrent vomiting and diarrhea, it's essential to consult a healthcare professional. They can diagnose the underlying cause and provide appropriate treatment, which may include antibiotics for bacterial infections, antiparasitic medications for parasites, or medications to manage specific conditions like IBD or IBS.

Remember that good hygiene practices, such as handwashing and proper food handling, can help prevent many cases of gastrointestinal distress. Additionally, staying well-hydrated, maintaining a balanced diet, and managing stress can contribute to better gastrointestinal health.

In conclusion, experiencing both vomiting and diarrhea can be uncomfortable and concerning, but it's often a sign that your body is reacting to an infection or irritant. Understanding the possible causes and following appropriate management and treatment strategies can help you recover and prevent future episodes of concurrent vomiting and diarrhea. Don't hesitate to consult a healthcare professional for guidance and assistance if in doubt.