Table of ContentsView AllTable of ContentsCausesManaging SymptomsWhen to Call a ProviderWhat Other Colors Mean

Table of ContentsView All

View All

Table of Contents

Causes

Managing Symptoms

When to Call a Provider

What Other Colors Mean

Coughing up white mucus can mean you have congestion with a respiratory infection such as bronchitis, or it can be a symptom of long-term health issues like chronic obstructive pulmonary disease (COPD).The color of yourmucuscan suggest what is causing it, but not always.

Your healthcare provider might ask you about the color of your mucus, but they usually can’t diagnose you based on mucus color alone. They will also want to know about the consistency (thickness) and other characteristics of the mucus that you arecoughing up.

Causes of White Mucus - Illustration by Michela Buttignol

The function of mucus is to lubricate and protect delicate structures. It can trap small particles (such as germs and dust), making it easier for them to be safely removed from the body.

There are a number of potential causes of white mucus.

Bronchitis

If you have bronchitis, you may have other symptoms such as:

Bronchitis usually resolves on its own with rest and good hydration.Try using a humidifier to help relieve your symptoms.

Viral Respiratory Infection

The development of a cough with white mucus could indicate that you are coming down with a cold or other viral respiratory infection, including the potentially serious respiratory syncytial virus (RSV).

This type of infection usually affects the upper respiratory tract, including your lungs, throat, and sinuses. Influenza andCOVID-19are examples of viruses that cause this type of infection.Other symptoms may include:

Things you can do to help your body fight a viral infection that is causing a cough include getting plenty of rest, nourishing your body, and increasing your fluid intake.

Using a cool-mist humidifier and saline nasal sprays can help thin the mucus and make it easier to clear. Lozenges (cough drops) can also help relieve symptoms.

Is Cough Medicine Effective?Over-the-counter cough medicines are widely used but there’s still a lack of evidence that they are effective, and they may come with side effects.Cough and cold medicines should never be given to children ages four or under. Do not give cough or cold medicines to children ages four to six unless their healthcare provider tells you to.

Is Cough Medicine Effective?

Over-the-counter cough medicines are widely used but there’s still a lack of evidence that they are effective, and they may come with side effects.Cough and cold medicines should never be given to children ages four or under. Do not give cough or cold medicines to children ages four to six unless their healthcare provider tells you to.

Asthma

When you haveasthma, your body may produce excess mucus, and swollen, inflamed tissues can slow its ability to flow through the respiratory passageways.

Other symptoms of asthma include:

Asthma can’t be cured, but it can be managed with medication and the right treatment plan. Avoiding your triggers can also help you keep your asthma under control.

Can Allergies Cause White Phlegm?Allergies can cause white phlegm (mucus) or phlegm that has no color. Allergy treatment can include taking an antihistamine, using a nasal steroid, or consulting with an allergy specialist.

Can Allergies Cause White Phlegm?

Allergies can cause white phlegm (mucus) or phlegm that has no color. Allergy treatment can include taking an antihistamine, using a nasal steroid, or consulting with an allergy specialist.

Chronic Obstructive Pulmonary Disease

White mucus can also appear foamy or frothy if there are large amounts of air bubbles in it. A small amount of foamy white mucus is not usually a concern; however, coughing up a larger amount of foamy mucus can indicate a serious illness such asCOPD.

Other symptoms of COPD include:

COPD can be managed with short- or long-acting bronchodilator inhalers. Your healthcare provider may prescribe a steroid inhaler if first-line treatments aren’t working.Certain oral medications can also help.

Gastroesophageal Reflux Disease (GERD)

People with gastroesophageal reflux disease (GERD) may cough up foamy, white mucus. This usually occurs along with other symptoms such as:

Losing weight and changing your diet can also offer relief. Severe cases of GERD might require surgical intervention.

Pulmonary Edema

Pulmonary edemacauses fluid to build up in the lungs. This can make you cough up white or pink foamy mucus. Other symptoms of pulmonary edema include:

Pulmonary edema is considered a medical emergency, treated in the hospital with oxygen and medication.If you have any of these symptoms, seek emergency care right away.

Heart Problems

Sometimes, coughing can be a sign of heart failure. If you have a cardiac cough, you may cough up white mucus or mucus that is pink or blood-tinged.This type of cough doesn’t resolve with time.

Dehydration

Thick, white mucus can occur from dehydration.Increasing your fluid intake and using a cool-mist humidifier next to your bed at night can help thin out your mucus and make it easier to clear.

Depending on the underlying cause of your white mucus, you may be able to self-treat the excess mucus with home remedies. Otherwise, an OTC or prescription medication may be useful for your symptoms.

Home Remedies

These at-home treatments may help torelieve coughingand congestion:

Medications

If home remedies are not enough to relieve congestion and clear your sinuses, consider OTC medications. Your healthcare provider also may prescribe medication:

Some OTC congestion medications, like Sudafed Triple Action and Tylenol Sinus Severe Congestion, are formulated with a combination of guaifenesin, acetaminophen, pseudoephedrine, or other active ingredients. Make sure to read drug labels carefully and never take more than one medication containing acetaminophen or another active ingredient at the same time.

When to Call a Healthcare Provider

Most conditions that cause a cough with white mucus will go away with rest and self-care. If you have certain symptoms or your symptoms persist, however, call your healthcare provider. For example:

If you cannot tell how much mucus you are coughing up, try spitting into a cup that you can measure and report this information to your healthcare provider.

You might be able to have your healthcare provider assess your mucus production at an office visit. However, in some cases, they might want you to go to the emergency room for more urgent care.

When to Call 911If you have any of these symptoms, call 911 or seek emergency care right away:You are having trouble breathingYou have blue or white colored lips or nails.You’ve lost consciousness.You feel confused.

When to Call 911

If you have any of these symptoms, call 911 or seek emergency care right away:You are having trouble breathingYou have blue or white colored lips or nails.You’ve lost consciousness.You feel confused.

If you have any of these symptoms, call 911 or seek emergency care right away:

What Other Colors of Mucus Mean

The color and consistency of mucus can give your healthcare provider clues as to what is causing your cough. Besides white mucus, you may also have mucus that is:

White mucus may suggest certain conditions, but the color of your mucus alone is not a good diagnostic tool. Your healthcare provider may ask about color, but they may also take a sample of your mucus for a gram stain. This is a test that can help identify bacteria in your sputum.

Summary

If you are concerned about your coughing or mucus production, call your healthcare provider. While occasional white mucus is likely not a reason to worry, coughing up a lot of white mucus, mucus that has blood in it, or coughing up mucus when you also have other symptoms can be signs of a more serious condition.

A Word From VerywellWhile symptomatic treatment of a cough can lessen discomfort, it’s extremely important to understand the root cause if it is prolonged. Viral/bacterial infections, chronic respiratory and cardiac conditions, allergies, and GERD may all present similarly with a cough, but treatment differs greatly. It’s imperative to have a medical evaluation to hasten recovery and prevent future episodes.—ALEXIS APPELSTEIN, DO, MEDICAL EXPERT BOARD

A Word From Verywell

While symptomatic treatment of a cough can lessen discomfort, it’s extremely important to understand the root cause if it is prolonged. Viral/bacterial infections, chronic respiratory and cardiac conditions, allergies, and GERD may all present similarly with a cough, but treatment differs greatly. It’s imperative to have a medical evaluation to hasten recovery and prevent future episodes.—ALEXIS APPELSTEIN, DO, MEDICAL EXPERT BOARD

While symptomatic treatment of a cough can lessen discomfort, it’s extremely important to understand the root cause if it is prolonged. Viral/bacterial infections, chronic respiratory and cardiac conditions, allergies, and GERD may all present similarly with a cough, but treatment differs greatly. It’s imperative to have a medical evaluation to hasten recovery and prevent future episodes.

—ALEXIS APPELSTEIN, DO, MEDICAL EXPERT BOARD

Alexis Appelstein, DO

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