What Might Be Causing the Bitter Taste in Your Mouth

September 19, 2026

Man with a bitter taste in his mouth

If you have a bad taste in your mouth, then you might try to get rid of it as soon as possible. It can be frustrating, but you may try brushing your teeth, chewing gum, or drinking water. While you get relief, your next action might be to find out what caused it, especially if it’s been happening for a while. Here are four possible culprits and whether you should visit your emergency dentist.

Poor Oral Hygiene

For some people, the bitter taste may be worse in the morning. If so, then it may be your oral hygiene to blame. If you don’t properly brush and floss, plaque can build up on your tongue and along your gumline. This can cause an unpleasant taste that gets stronger, so don’t forget to stick to your routine. Keeping up with it can also lower your risk of cavities and gum disease.

Acid Reflux or GERD

Acid reflux is when stomach acid rises back into your esophagus. Common symptoms of this are a sour taste, indigestion, and a burning sensation in your chest or abdomen. While experiencing this on rare occasions isn’t necessarily a problem, frequent episodes may be a sign of gastroesophageal reflux disease (GERD). That said, it’s always best to consult your physician for a diagnosis.

Dry Mouth

Dry mouth is when you don’t produce adequate amounts of saliva. This can lead to an unpleasant taste, but it can be caused by smoking, alcohol, autoimmune diseases, and certain medications. If you have this condition, then you’re also at a higher risk of oral health issues since plaque can linger for longer without being washed away. Drinking water throughout the day is a great way to combat this.

Medications & Supplements

You might take some medications and supplements that can have a bitter taste as a side effect. They can be excreted into your saliva when absorbed into your body. It may be intense and persistent, but you should talk to your doctor about what you can do. They can help you come up with a plan that allows you to still take the medicine you need.

In the end, a bitter taste can be annoying, but you should loop in your dentist about it. That way, you can find out whether it’s an issue they can fix and get the relief you deserve.

About the Practice

Ready for a stronger smile? Our team at Cosmetic & Restorative Dentistry of the Keys is dedicated to helping patients in Big Pine Key with their oral health by offering a wide range of treatments. Led by compassionate dentists, we are here for your dental emergencies by getting you in as soon as possible. That way, you get back a comfortable grin. If you’re struggling with a bitter taste in your mouth, schedule an appointment or call our office at (305) 872-4272.