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What causes bitter taste in mouth? 10 possible conditions

See a list of possible causes in order from the most common to the least.



Heartburn typically occurs when contents from the stomach back up into the esophagus. This causes a burning sensation in the chest and a bitter taste in the throat or mouth. Heartburn may be prevented by avoiding food...

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Hiatal Hernia

A hiatal hernia occurs when the upper part of your stomach pushes up through your diaphragm and into your chest cavity. Common symptoms include heartburn, belching, and abdominal discomfort.

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Types of Acid Reflux

Acid reflux symptoms are caused when stomach contents flow up from the stomach back into the esophagus, causing symptoms like heartburn, stomach pain, and burping.

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A hernia occurs when an organ pushes through the muscle or tissue that holds it in place. Hernias are most common in the abdomen but can appear elsewhere.

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Tooth Decay

A cavity, also called tooth decay, is a hole that forms in your tooth. Cavities start small and gradually become bigger when they're left untreated.

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The esophagus is the tube that carries food from your throat to your stomach. Achalasia occurs when your lower esophageal sphincter doesn't work properly.

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H. Pylori Infection

H. pylori are a type of bacteria that may not cause problems. However, sometimes it can cause pain, bloating, and burping, and may lead to ulcers or stomach cancer.

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Oral Cancers

Oral cancer is a cancer that affects the tissues of the mouth and throat, one symptom of which may be a lump in the neck.

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Lichen Planus

Lichen planus is a fairly common skin rash that is thought to be triggered by the immune system. It causes lesions in the mouth that may be painful or burn.

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Getting a Handle on Aspiration Pneumonia

This condition is considered a medical emergency. Urgent care may be required.

Aspiration pneumonia is an inflammation (usually due to an infection) of your lungs and bronchial tubes that occurs after you inhale foreign matter.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.