Throwing up thick, clear phlegm often means excessive mucus from postnasal drip (allergies, infections like colds/flu), GERD (acid reflux), or your stomach lining protecting itself, especially after emptying food; it's usually your body clearing irritants, but persistent or worsening symptoms, especially with other signs like fever or difficulty breathing, warrant a doctor visit to rule out bronchitis, sinusitis, or other issues.
The clear liquid vomited usually indicates it contains mostly saliva and gastric juices, often occurring before eating or when the stomach is empty.
Being sick with sinusitis or respiratory infections is the most common cause of excess amounts of thick mucus in your nose or throat. Allergies or irritants. Allergies and other irritants in your respiratory tract can cause excess clear mucus. Lung diseases.
If you're coughing up clear phlegm, it usually means your body is trying to flush out pollen, pet dander or other allergens. However, in some cases, it could indicate a more serious condition, such as: Viral bronchitis.
Mucus in vomit may originate from mucus produced to protect the stomach lining or from swallowed mucus from the nasal passages. When nasal mucus changes in consistency or increases in volume, it is called postnasal drip, which commonly occurs with cold viruses and pregnancy.
Green-yellow vomit or any color that may indicate blood in the vomit is cause for concern and should be checked by a healthcare professional. They should also contact a healthcare professional if they experience any of the following: inability to keep fluids down due to vomiting. signs of severe dehydration.
“You'll likely need a chest x-ray or CT scan to determine the cause and rule out anything sinister." Phlegm from pneumonia can be a dark brown or a vibrant yellow or green, and “it just looks gross,” Dr. Lindsay says.
Ask for an urgent GP appointment or get help from NHS 111 if:
Sometimes thick or discolored mucus clears up on its own, especially if it's caused by a mild infection or allergies. But phlegm that persists, worsens, or is accompanied by other symptoms may need medical attention.
Clear or white: Clear liquid vomit is often seen when vomiting on an empty stomach or after drinking water. It may consist mainly of saliva and stomach acids. Foamy clear vomit might indicate excess alcohol consumption or acid reflux.
Five common symptoms of bronchitis are a persistent cough (often producing mucus), chest soreness or tightness, shortness of breath, wheezing, and fatigue, often accompanied by cold-like symptoms such as a runny nose, mild headache, or low-grade fever.
Red Vomit (hematemesis)
When you have a significant amount of vomit that is bright red in color or resembles coffee grounds, you should contact your doctor immediately. This can be the result of multiple conditions including, but not limited to: Liver failure.
A stomach bug, lots of water on an empty stomach, or some infection can result in a clear vomit. This discharge will look like clear liquid or water, and there is nothing to worry about unless this persists for some days or you cannot make out what is causing it.
Walking pneumonia symptoms to look for:
There are several symptoms of GERD cough, including coughing, wheezing, hoarseness, and chest congestion. The cough may be dry or accompanied by thick phlegm. In some cases, GERD cough may be mistaken for a cold or the flu.
An RSV cough often sounds wet, deep, and chesty, with lots of mucus, and can include wheezing or whistling sounds, especially when exhaling, due to inflamed airways. It's a persistent, forceful cough that can be worse in young children and babies, sometimes mistaken for croup but often accompanied by signs of labored breathing like rapid breathing, flaring nostrils, and grunting, indicating lower respiratory tract involvement like bronchiolitis.
Ongoing cough that may bring up a lot of mucus. The mucus may be clear, white, yellow or greenish. Chest tightness or heaviness. Lack of energy or feeling very tired.
Early signs of pneumonia often mimic the flu or a bad cold but worsen, including fever, cough (which might bring up phlegm), fatigue, shortness of breath, and chest pain that worsens with breathing or coughing; other common symptoms are chills, headache, muscle aches, loss of appetite, and sometimes vomiting or diarrhea, with confusion possible in older adults, while infants show fussiness, trouble feeding, and pale skin.
coughing up a lot of phlegm (mucus) – the phlegm may be clear, white, yellow or green. getting frequent chest infections, where your symptoms get worse for a few days or weeks and you may feel generally unwell.
Blood backs up in the pulmonary veins (the vessels that return blood from the lungs to the heart) because the heart can't keep up with the supply. This causes fluid to leak into the lungs. Coughing that produces white or pink, blood-tinged mucus.
Laryngopharyngeal reflux (LPR) represents a disorder in which gastric contents, including acid and pepsin, reflux beyond the esophagus into the larynx and pharynx, producing irritation of the upper aerodigestive tract.
One of the most common causes of morning phlegm is postnasal drip. Excess mucus from the nasal passages drips down the back of the throat while you sleep. This can be triggered by allergies or respiratory infections, leading to that annoying morning phlegm.