Read below about vomiting, including causes and common questions. Or get a personalized analysis of your vomiting from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

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A.I. Health Assistant Causes for Vomiting

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced vomiting. This list does not constitute medical advice.

  1. 1.Viral (Norovirus) Infection

    Noroviruses are a group of related viruses that leads to nausea, vomiting, diarrhea, and cramps. These viruses cause gastroenteritis, an inflammation of the stomach and intestines. When the diarrhea and/or vomiting is severe, dehydration can occur. Symptoms of dehydration include a dry mouth, dizziness, urinating less frequently and dark urine.

    Usually resolves within 2-3 days.

    Rarity:
    Common
    Top Symptoms:
    diarrhea, vomiting or nausea, fatigue, nausea, abdominal pain (stomach ache), headache
    Symptoms that always occur with viral (norovirus) infection:
    diarrhea, vomiting or nausea
    Symptoms that never occur with viral (norovirus) infection:
    severe abdominal pain, throbbing headache, severe headache, tarry stool, vaginal bleeding, alertness level change
    Urgency:
    Self-treatment
  2. 2.Non - Specific Nausea and Vomiting

    Nausea and vomiting with no recognizable cause.

    1 day

    Rarity:
    Common
    Top Symptoms:
    nausea, vomiting
    Symptoms that always occur with non-specific nausea and vomiting:
    nausea, vomiting
    Symptoms that never occur with non-specific nausea and vomiting:
    diarrhea, fever, headache
    Urgency:
    Self-treatment
  3. 3.Food Poisoning

    Food poisoning is a common ailment that causes gastrointestinal symptoms like nausea, vomiting, and diarrhea. It is caused by improperly handled or unrefrigerated food.

    1-3 days

    Rarity:
    Common
    Top Symptoms:
    nausea, abdominal pain (stomach ache), headache, abdominal cramps (stomach cramps), dizziness
    Symptoms that never occur with food poisoning:
    severe fever, being severely ill, bloody diarrhea
    Urgency:
    Self-treatment
  4. 4.Indigestion (Dyspepsia)

    Indigestion, also known as dyspepsia, is a condition that causes pain or discomfort in the stomach after eating. In some cases, indigestion also causes heartburn, burping, and nausea. Indigestion or dyspepsia is a very common complaint. Every year, about 1 in every 4 people will experience an episode of dyspepsia, of which most cases do not have a serious underlying cause.

    These symptoms are likely to resolve, if they persist you should discuss this with your primary care physician.

    Rarity:
    Common
    Top Symptoms:
    nausea, stomach bloating, dyspeptic symptoms, bloating after meals, vomiting
    Symptoms that always occur with indigestion (dyspepsia):
    dyspeptic symptoms
    Symptoms that never occur with indigestion (dyspepsia):
    vomiting (old) blood or passing tarry stools, rectal bleeding, bloody diarrhea, fever
    Urgency:
    Self-treatment

    Vomiting Checker

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  5. 5.Viral (Rotavirus) Infection

    Rotavirus is a virus that causes an infection of the gut, known as gastroenteritis. Symptoms include diarrhea, vomiting and fever. When the diarrhea and/or vomiting is severe, dehydration can occur. Symptoms of dehydration include a dry mouth, dizziness, urinating less frequently and dark urine.

    Symptoms resolve on their own within a few days.

    Rarity:
    Ultra rare
    Top Symptoms:
    diarrhea, vomiting or nausea, nausea, fatigue, abdominal pain (stomach ache), headache
    Symptoms that always occur with viral (rotavirus) infection:
    diarrhea, vomiting or nausea
    Symptoms that never occur with viral (rotavirus) infection:
    constipation, tarry stool
    Urgency:
    Self-treatment
  6. 6.Recurrent Migraine

    Migraines are headaches of moderate to severe intensity, which happen when blood vessels in the brain swell up. They are episodic and thus can recur often. Most migraine sufferers experience increased sensitivity to sounds and/or lights and become nauseous and vomit.

    Migraine symptoms may resolve within a day or two, but the condition can come and go for a year or more. If any particular episode is unusually severe or does not respond to your customary treatments, you may want to see a doctor urgently.

    Rarity:
    Common
    Top Symptoms:
    headache, history of headaches, fatigue, nausea, mild headache
    Symptoms that always occur with recurrent migraine:
    headache, history of headaches
    Symptoms that never occur with recurrent migraine:
    fever, headache resulting from a head injury
    Urgency:
    Primary care doctor
  7. 7.Food Poisoning by the Staphylococcus Bacteria

    Staphylococcus aureus is a bacterium that can be spread by food workers who handle food without washing their hands, and can also be found in unpasteurized milk and cheese products. Infection with this bacterium causes a stomach and intestinal illness in a short period of time, with symptoms such as nausea, vomiting, cramps, and diarrhea.

    Non-contagious illness usually lasting for 1 day (may take up to 3 days in rare cases).

    Rarity:
    Uncommon
    Top Symptoms:
    nausea, nausea or vomiting, diarrhea, abdominal cramps (stomach cramps), vomiting
    Symptoms that always occur with food poisoning by the staphylococcus bacteria:
    nausea or vomiting
    Urgency:
    Self-treatment
  8. 8.Small Bowel Obstruction

    A small bowel obstruction is most often caused by adhesions after surgery, which make it difficult or impossible for food and fluid to pass through the bowel. This causes a blockage. Small bowel obstructions often cause nausea, vomiting, abdominal pain, and constipation.

    With appropriate treatment, symptoms resolve within days. In 18% of patients, an obstruction occurs again within 10 years.

    Rarity:
    Uncommon
    Top Symptoms:
    abdominal pain (stomach ache), nausea, stomach bloating, being severely ill, abdominal cramps (stomach cramps)
    Symptoms that always occur with small bowel obstruction:
    being severely ill
    Urgency:
    Hospital emergency room
  9. 9.Food Poisoning Caused by Bacillus Cereus

    Bacillus cereus is a bacteria that produces spores in a variety of foods, especially rice and leftovers that are left out at room temperature. It is relatively rare compared to other causes of food poisoning.

    Prognosis is good. Symptoms typically go away in 12 to 48 hours

    Rarity:
    Rare
    Top Symptoms:
    stomach bloating, abdominal cramps (stomach cramps), diarrhea, vomiting
    Urgency:
    Self-treatment

FAQs About Vomiting

Here are some frequently asked questions about vomiting.

Can vomiting cause dehydration?

Yes vomiting can cause dehydration due to loss of both fluids and electrolytes in gastric contents and inability to take in additional fluids. In severe cases vomiting can cause changes in mental status and can affect kidney function.

What foods are good for nausea?

Generally, bland foods are good for nausea. Start by trying simply water, then clear broth and possibly Jell-O, followed by non-clear broth, then salt-less crackers or white bread, and then more complex bread and foods.

When should you seek medical attention for vomiting?

You should seek medical attention if there is a brown, coffee ground-like substance in your vomit, if there is blood in your vomit, if you feel weak for a prolonged period of time, if you are unable to stand or sit up, and if you are alone while undergoing an ordeal of intense vomiting.

Why do I feel like vomiting but then nothing comes out?

Vomiting can be caused by nausea independent of what is or is not in one's stomach. Sometimes, when one has to vomit, the stomach is empty — in which case, one feels the undulations of an upset stomach (wretching)— so no food exits the body.

Why do I keep vomiting in the morning?

Vomiting in the morning can be a sign of many things. Most notable and dangerously, a tumor placing pressure on the brain can cause a morning headache and vomiting in the morning. This is a more common presentation of a brain tumor within children. It can also be a sign of pregnancy.

Questions Your Doctor May Ask About Vomiting

  • Q.Any fever today or during the last week?
  • Q.Have you lost your appetite recently?
  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?
  • Q.Are you experiencing a headache?

If you've answered yes to one or more of these questions, try our vomiting symptom checker to find out more.

Vomiting Quiz

Vomiting Symptom Checker Statistics

  • People who have experienced vomiting have also experienced:

    • 16% Abdominal Pain (Stomach Ache)
    • 10% Nausea
    • 6% Diarrhea
  • People who have experienced vomiting had symptoms persist for:

    • 65% Less Than a Day
    • 21% Less Than a Week
    • 5% Over a Month
  • People who have experienced vomiting were most often matched with:

    • 33% Viral (Norovirus) Infection
    • 33% Non - Specific Nausea and Vomiting
    • 33% Food Poisoning
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

A.I. Health Assistant

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