Causes of Throwing Up Mucus Vomiting Vector

The Top 10+ Causes of Throwing Up Mucus (2024)

by | Updated: Apr 19, 2024

The act of vomiting is the body’s way of expelling harmful substances or responding to irritations.

While many associate vomiting with the expulsion of food and stomach acid, it is not uncommon for one to throw up mucus.

This mucus, produced by the lining of the gastrointestinal tract, plays a vital role in the body’s digestive system.

Understanding the causes behind throwing up mucus provides insight into the body’s protective mechanisms and potential health concerns.

Can Mucus Cause Vomiting?

Yes, mucus can cause vomiting if it accumulates in the stomach. This is often the result of postnasal drip, where excess mucus from the nasal passages drips down the throat and is swallowed. The presence of too much mucus in the stomach can irritate it, leading to nausea and vomiting.

Why is There Mucus in My Vomit?

Mucus in vomit often originates from the protective lining of the stomach and esophagus. This lining produces mucus to shield the tissue from harsh stomach acids.

When you vomit, the forceful expulsion can bring up this mucus along with stomach contents. If you’re frequently vomiting or concerned about its contents, consult a healthcare professional.

Person throwing up mucus vector illustration

Causes of Throwing Up Mucus

Throwing up mucus can be disconcerting, but understanding its causes can offer clarity. Mucus in vomit can originate from several sources and can indicate various conditions, both benign and more serious.

Here are the primary causes of throwing up mucus:

  • Gastrointestinal Tract Lining: The stomach and esophagus are lined with mucus-producing cells. This mucus acts as a protective barrier against the acidic environment of the stomach. Vomiting can force this mucus out along with other stomach contents.
  • Postnasal Drip: Conditions like colds, flu, sinusitis, or allergies can lead to postnasal drip, where mucus from the nasal passages flows down the back of the throat. If the body tries to expel this excess mucus, it might lead to vomiting it up.
  • Gastroesophageal Reflux Disease (GERD) GERD is a condition where stomach acid frequently flows back into the esophagus, irritating its lining. This can lead to increased mucus production as a protective response, which can be expelled during vomiting.
  • Stomach Flu (Gastroenteritis): Infections that cause gastroenteritis can lead to inflammation of the stomach and intestines. The body might produce more mucus in response, which can be present in vomit.
  • Dietary Irritants: Consuming spicy foods, alcohol, or certain medications can irritate the stomach lining, leading to increased mucus production, which might be thrown up.
  • Stomach Ulcers: Ulcers are sores on the lining of the stomach or small intestine. They can lead to increased mucus production as the body tries to protect the ulcerated area.
  • Certain Medications: Some medications can irritate the stomach lining, leading to increased mucus production.
  • Chronic Conditions: Conditions such as cystic fibrosis or chronic bronchitis can lead to increased mucus production in the respiratory system. If swallowed, this mucus might be thrown up later.
  • Swallowing Difficulties: Conditions that affect swallowing can lead to accumulation of mucus in the throat or esophagus, which may be regurgitated.
  • Stress and Anxiety: Prolonged stress and anxiety can affect the stomach’s functioning and lead to symptoms like nausea and increased mucus production.

Note: If someone frequently experiences vomiting mucus or has other accompanying symptoms, it’s crucial to consult with a healthcare professional to diagnose any underlying conditions and receive appropriate care.

Symptoms of Throwing Up Mucus

Throwing up mucus itself is a symptom of an underlying condition or response.

However, when someone is expelling mucus while vomiting, they might also experience a range of associated symptoms, depending on the cause.

Some of these accompanying symptoms include:

  • Nausea: A general feeling of discomfort in the stomach, often preceding vomiting.
  • Heartburn: A burning sensation in the chest, typically caused by acid reflux.
  • Sore Throat: Due to postnasal drip or repeated vomiting irritating the throat lining.
  • Stomach Pain or Discomfort: This could range from a mild, nagging ache to sharp pains, depending on the cause.
  • Bloating: A feeling of fullness or gas in the stomach or intestines.
  • Diarrhea: Loose, watery stools which may accompany stomach infections or irritations.
  • Fever: Elevated body temperature indicating an infection or illness.
  • Fatigue: Feeling tired or weak, especially if the body is fighting off an infection.
  • Congestion: Nasal congestion or stuffiness due to colds, allergies, or sinus infections.
  • Cough: Especially if mucus production is related to respiratory issues.
  • Loss of Appetite: A reduced desire to eat, often due to stomach discomfort or nausea.
  • Dehydration: Symptoms include dry mouth, dark urine, and dizziness, especially if vomiting is frequent.
  • Difficulty Swallowing: Trouble or pain when swallowing, which might be accompanied by the sensation of something stuck in the throat.
  • Bad Breath: Especially if there’s a buildup of mucus or if it’s related to a postnasal drip.
  • Weight Loss: Unintentional weight reduction over time, especially if vomiting is chronic or frequent.
  • Chest Pain: Not commonly associated with vomiting mucus, but if present, it’s crucial to seek medical attention, as it could indicate a severe condition.

If someone regularly experiences these symptoms or finds them severe, it is crucial to seek medical attention.

The combination of these symptoms can offer clues into the underlying cause of throwing up mucus and guide appropriate treatment.


Diagnosing the cause of throwing up mucus involves a comprehensive evaluation by a healthcare professional.

They’ll take a detailed medical history, ask about the frequency and appearance of the vomit, and any accompanying symptoms.

Physical examinations, blood tests, or imaging studies like X-rays or endoscopy might be required. For cases suspected to be linked with digestive disorders, a pH monitoring or esophageal manometry could be recommended.

Accurate diagnosis is crucial to ensure targeted and effective treatment.

How to Prevent Throwing Up Mucus

Preventing the act of throwing up mucus revolves around addressing its root causes.

Here are some general strategies:

  • Dietary Adjustments: Avoid spicy, greasy, or acidic foods, limit or eliminate alcohol and caffeine consumption, and eat smaller, frequent meals instead of large ones.
  • Manage GERD: Elevate the head while sleeping, don’t eat for at least 2-3 hours before bedtime, or take over-the-counter antacids or prescribed medications.
  • Address Postnasal Drip: Use saline nasal sprays or irrigations, take antihistamines or nasal corticosteroids for allergies, and avoid irritants, like smoking or polluted air.
  • Stay Hydrated: Drink enough water daily, which helps in thinning mucus and reducing its accumulation.
  • Manage Stress: Techniques like meditation, deep breathing exercises, and yoga can help control stress, a potential trigger for increased mucus production and vomiting.
  • Quit Smoking: Smoking can irritate the throat and increase mucus production.
  • Limit Medication Side Effects: If a particular medication causes stomach upset, consult your doctor about potential alternatives or accompanying medications to mitigate effects.
  • Practice Good Hygiene: Wash hands frequently and avoid contact with sick individuals to prevent infections that can lead to increased mucus production and vomiting.
  • Consult Healthcare Professionals: For chronic conditions like cystic fibrosis or bronchitis, follow prescribed treatment plans closely.
  • Monitor Food Intake: Ensure food is well-cooked and properly stored to avoid foodborne illnesses that can lead to vomiting.

If symptoms persist or if there are concerns about the frequency or content of vomiting, it’s essential to consult with a healthcare professional.

Regular check-ups can help in early detection and management of conditions that might lead to throwing up mucus.

Treatment for Vomiting Mucus

Treatment for throwing up mucus hinges on addressing the underlying cause. Here’s a breakdown of potential treatments based on common causes:

  • Dietary Changes: For dietary irritants, avoid spicy, greasy, or acidic foods. Consume bland foods such as toast, rice, or bananas during episodes of upset stomach.
  • Manage GERD: Over-the-counter antacids can neutralize stomach acid. Proton pump inhibitors or H2 blockers can reduce acid production. Lifestyle changes like elevating the head while sleeping and avoiding late-night meals.
  • Treat Postnasal Drip: Antihistamines can be used for allergies. Decongestants can reduce mucus from colds. Nasal corticosteroids can reduce inflammation and mucus production.
  • Gastroenteritis Treatment: Rest and hydration are key. Oral rehydration solutions can replenish lost electrolytes from vomiting and diarrhea. In severe cases, intravenous hydration might be necessary.
  • Medication Review: If a particular drug is causing stomach upset or increased mucus production, discuss alternatives or adjunct treatments with your doctor.
  • Manage Respiratory Conditions: For conditions like bronchitis, cystic fibrosis, or asthma, follow prescribed treatment regimens, which might include inhalers, mucolytics, or other medications.
  • Ulcer Treatment: Proton pump inhibitors or H2 blockers can be prescribed. Antibiotics might be necessary if the cause is an H. pylori infection.
  • Stress Management: Counseling, cognitive behavioral therapy, or relaxation techniques can be beneficial. Medications like anti-anxiety drugs might be prescribed in some cases.
  • Treat Swallowing Disorders: Speech or physical therapy can help in cases of dysphagia or other swallowing issues. Addressing the root cause, whether it’s a neurological issue or physical obstruction, is crucial.
  • Hydration: If dehydration is a concern due to frequent vomiting, drinking water or oral rehydration solutions is essential.

For persistent or severe symptoms, or if there’s uncertainty about the cause of the vomiting, seeking medical attention is crucial.

A healthcare professional can provide a proper diagnosis and recommend the most appropriate treatment.

FAQs About Throwing Up Mucus

Can Mucus Cause Nausea?

Yes, mucus can cause nausea. When excess mucus from the nasal passages drips down the throat, it can accumulate in the stomach and irritate it, leading to feelings of nausea.

Additionally, the presence of mucus in the gastrointestinal tract can disrupt normal digestion, further contributing to feelings of nausea.

What Medical Condition is Associated with Mucus in Vomit?

Mucus in vomit can be associated with several conditions, ranging from benign to more serious.

Commonly, it’s linked to gastroesophageal reflux disease (GERD), stomach flu (gastroenteritis), ulcers, or postnasal drip resulting from allergies, colds, or sinus infections.

The presence of mucus can also be a protective response by the stomach’s lining against irritants or inflammation.

Should You Be Concerned About Mucus in Your Child’s Vomit?

While occasional mucus in a child’s vomit, especially during a cold or after crying, can be normal, persistent or excessive mucus can be concerning.

If it’s accompanied by other symptoms like fever, dehydration, lethargy, weight loss, or frequent vomiting, it’s advisable to consult a pediatrician to rule out underlying medical conditions and ensure your child’s well-being.

Will Throwing Up Get Rid of Mucus in the Throat?

While vomiting might expel some mucus from the throat temporarily, it isn’t a recommended or effective method for clearing mucus.

Continual vomiting can irritate the throat and esophagus, potentially leading to more mucus production.

Instead, methods like staying hydrated, gargling with warm salt water, or using expectorants can be more beneficial for mucus relief.

Can You Throw Up Mucus from Your Lungs?

Yes, mucus produced in the lungs, often in response to conditions like bronchitis, pneumonia, or asthma, can be coughed up into the throat and then swallowed.

While it’s more common to expel this mucus through coughing, if swallowed, it can be regurgitated during vomiting.

However, it’s essential to distinguish between mucus from the digestive tract and respiratory mucus, especially if it’s frequent or has a distinct color, which may indicate an infection or other medical condition.

Is Throwing Up Mucus Normal During Pregnancy?

Mild vomiting, including mucus, can be a part of morning sickness during early pregnancy. The hormonal changes, increased sensitivity to smells, and stomach irritations can lead to nausea and vomiting.

While occasional mucus in vomit isn’t usually a cause for concern, persistent vomiting or other alarming symptoms should prompt a consultation with an obstetrician.

Proper hydration and nutrition are essential during pregnancy, and any complications or concerns about vomiting should be discussed with a healthcare professional.

When to See a Doctor About Vomiting Mucus

If you’re vomiting mucus, it’s essential to monitor your symptoms.

You should seek medical attention if the vomiting is persistent, accompanied by severe pain, contains blood or a coffee-ground appearance, or if it’s coupled with other concerning symptoms like weight loss, fever, dehydration, or difficulty breathing.

Chronic or recurring episodes, or the presence of other alarming signs, could indicate a more severe underlying condition that requires professional evaluation and intervention.

Always prioritize your health and consult a doctor when in doubt.

Final Thoughts

Throwing up mucus is more than just an unsettling experience; it’s an indicator of the body’s response to specific irritants or conditions.

By comprehending the reasons behind this phenomenon, individuals can better gauge their health status and determine whether medical intervention is necessary.

As always, persistent or unusual symptoms should prompt a consultation with a healthcare professional to ensure optimal health and well-being.

John Landry, BS, RRT

Written by:

John Landry, BS, RRT

John Landry is a registered respiratory therapist from Memphis, TN, and has a bachelor's degree in kinesiology. He enjoys using evidence-based research to help others breathe easier and live a healthier life.


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