5 Causes of a Bad Taste in the Mouth

October 23, 2023

Experiencing an unpleasant or abnormal taste in the mouth can be both disconcerting and inconvenient. Often referred to as ‘dysgeusia,’ this sensation can arise from various factors, ranging from benign to more serious health concerns.

Understanding the potential causes of a bad taste in the mouth can provide valuable insights into addressing and alleviating the issue.

In this article, we will delve into five common causes of dysgeusia, shedding light on its origins and offering guidance on potential remedies.

Understanding the Sense of Taste

It’s our taste buds that allow us the ability to taste things. These little sensory organs are primarily located on the tongue, but do occur in other places in the mouth as well. The 5 basic things that we taste are; sweet, salty, bitter, sour, and umami (savory).

Common Causes of a Bad Taste in the Mouth

1. Poor Oral Hygiene

Poor oral hygiene can lead to a diminished ability to taste things. The bacteria coating the tongue can block the taste buds. The inflammation caused by bacteria can have the same effect. To maintain good oral hygiene and health, make sure to brush at least twice a day, and floss at least once per day. Brushing the tongue or using a tongue scraper can also help to diminish the accumulation of bacteria on the tongue.

2. Abscess

An abscess, or “pus pocket”, is an accumulation of dead white blood cells, bacteria, and tissue debris. This can occur when a tooth’s nerve dies, or in association with periodontal disease.

Symptoms include;

  • Swelling
  • Redness
  • Pain
  • Pus discharge.

If the infection started from within a tooth (endodontic abscess), an extraction or root canal therapy may be indicated. If it’s coming from the gums (periodontal abscess), then scaling and root planing, or a trip to see the periodontist (gum specialist) may be necessary.

3. Dry Mouth Caused by Prescription Drugs

The most common side effect of prescription drugs is xerostomia (dry mouth). Many medications can also affect your sense of taste, and/or smell. To list a few;

  • Antibiotics
  • Blood pressure medication
  • Cholesterol medication
  • Over the counter pain relievers
  • ADHD medications
  • Diabetes medications
  • And the list goes on.

Medications can cause a loss of taste, but more commonly will lead to a diminished sense of taste or altered taste.

If you are experiencing these symptoms, let your doctor know. Don’t stop taking the medication. There’s usually a good reason as to why you were given this prescription in the first place.

4. Acid Reflux

When acid and stomach contents make their way from the stomach, and up into the esophagus and mouth, this is acid reflux. This often leads to pain and burning, and a bitter or sour taste.

 If this is something new, over the counter medications can be helpful. For chronic and persistent problems with gastroesophageal reflux disease (GERD), contact your primary care physician. There may be an underlying cause that is a bigger issue. 

5. Neurological Conditions

Neurological conditions may also affect your sense of taste and smell.

These issues can be caused by trauma to the head, disorders with the facial and trigeminal nerve, and can also be associated with Parkinson’s and Alzheimer’s disease. Bell’s palsy can cause the loss of taste on one side of the mouth.

If you’re experiencing any of these conditions, it’s recommended to see a physician for an evaluation and discussion of treatment options.

Other Potential Causes

During pregnancy, a change in your hormones can cause a change in your sense of taste. Some foods may taste better, some may taste worse.

Dysgeusia is when there is a persistent taste that is foul or metallic. These symptoms occur more in the first trimester, and will often settle down further into the pregnancy as the hormones settle. 

Exposure to chemicals can certainly alter your sense of taste.

With age, our total number of taste buds tends to lessen, and those taste buds shrink as well. Our sense of the 5 main tastes diminishes with age. 

Tips for Managing a Bad Taste in the Mouth

Having an unpleasant taste lingering in your mouth can be more than just a minor annoyance; it can affect your overall sense of well-being and even your appetite.

Fortunately, there are several home remedies and preventative measures you can take to combat this issue.

Salt Water Rinses

Gargling with salt water can help ease inflammation, and reduce the bacteria in your mouth

Brushing the Tongue

Often, the accumulation of bacteria on the tongue can lead to a foul taste. Regularly brushing or using a tongue scraper can help.

Stay Hydrated

Drinking plenty of fluids, especially water, can help in flushing out toxins and bacteria from the mouth.

Avoid Acid Reflux Triggers

Foods that are spicy, acidic, or too greasy can exacerbate acid reflux, which can lead to a bad taste in the mouth. It’s best to avoid or limit these foods.

Chew Sugar-Free Gum

Chewing gum can stimulate saliva production, which can help in washing away any bad-tasting residue.

Seeking Medical Advice

While these remedies can be effective, it’s essential to remember that a persistent bad taste in the mouth can sometimes indicate a more significant health issue. Regular check-ups with your dentist and primary care physician can ensure that any underlying problems are identified and addressed promptly.

Taking the Next Step Towards Oral Health

Experiencing a persistent bad taste in your mouth can be more than just a fleeting annoyance. It may be indicative of underlying health issues that require attention. While home remedies can offer temporary relief, it’s crucial to address the root cause of the problem.

Dr. Rodda at Complete Dental Care is committed to ensuring the oral health and well-being of all patients. If you’re concerned about any oral symptoms or simply wish to maintain optimal oral health, don’t hesitate to schedule an appointment with Dr. Rodda.

Your mouth is a gateway to your overall health, and taking proactive steps today can lead to a healthier, happier tomorrow. Book an appointment with Dr. Rodda at Complete Dental Care.