
A bad taste in the mouth can be caused by a variety of factors, including poor dental hygiene, dry mouth, bacterial infections, or even certain medications. In some cases, it could be a sign of a more serious underlying medical condition. For example, a metallic taste in the mouth has been linked to kidney disease, while a bitter taste could indicate hepatitis B. If you're experiencing a persistent bad taste, it's important to consult a healthcare professional to rule out any potential health issues and receive proper treatment.
| Characteristics | Values |
|---|---|
| Frequency | Lasts anywhere from 2 minutes to an hour |
| Cause | Bacterial infection, poor dental hygiene, medication, dry mouth, or a more serious illness |
| Treatment | Brushing teeth, seeing a doctor, improving dental hygiene, adjusting medication, or making lifestyle changes |
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What You'll Learn

Poor oral hygiene
In addition to the direct impact of poor oral hygiene, other related factors can exacerbate the issue. For example, dry mouth, also known as xerostomia, can occur when the salivary glands do not produce enough saliva. Saliva helps to reduce bacteria and remove food particles from the mouth. As a result, dry mouth can lead to an increase in bacteria, causing a bad taste. Certain medications, health conditions, and lifestyle factors can contribute to dry mouth, further worsening the taste issue.
It is important to note that an occasional bad taste in the mouth may be temporary and resolved by improving oral hygiene practices. However, if the taste persists or is accompanied by other symptoms, it is advisable to consult a dentist or doctor to rule out any underlying dental or medical conditions. Practicing good oral hygiene, including regular brushing, flossing, and professional dental cleanings, can help prevent and manage issues related to poor oral hygiene, improving overall oral health and reducing the likelihood of experiencing an unpleasant taste in the mouth.
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Dry mouth
If you think you have dry mouth, it is important to see your dentist or doctor to determine the underlying cause and receive appropriate treatment. Self-care steps include drinking plenty of water, chewing sugarless gum, and avoiding tobacco, alcohol, and drinks with caffeine. In some cases, your healthcare provider may recommend adjusting your medications, prescribing a saliva substitute, or using artificial saliva to keep your mouth moist.
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Infections
Hepatitis B, a viral infection of the liver, can cause a bitter taste in the mouth. In addition, medications for hepatitis C can affect a person's sense of smell and taste. Fetor hepaticus, caused by liver scarring, can result in breath that smells sweet, musty, or like sulfur.
Other infections or conditions that can cause a bad taste in the mouth include gum disease, acid reflux, and dry mouth (xerostomia). Poor oral hygiene can also lead to dental problems such as gingivitis, which can cause a bad taste.
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Pregnancy
During pregnancy, it is common to experience a distorted sense of taste, known as dysgeusia. This can cause a metallic or sour taste in the mouth, even when you're not eating. Dysgeusia is caused by changing hormone levels, particularly a surge in estrogen, which can affect the taste buds. It is generally worse in the first trimester, with symptoms improving towards the end of pregnancy.
Dysgeusia can be unpleasant, but it is typically not harmful and will likely go away on its own. However, it is important to ensure that it does not lead to nutritional deficiencies or weight loss. If you are concerned about your symptoms or if they persist beyond the first trimester, it is recommended to consult a healthcare professional.
There are some remedies that may help alleviate the symptoms of dysgeusia during pregnancy. Maintaining good oral hygiene, including brushing and flossing your teeth, and gently brushing your tongue, can help reduce any lingering metallic tastes. Using a mild salt solution or a baking soda solution as a mouthwash a few times a day can also help neutralize pH levels in the mouth. Additionally, drinking enough fluids can help reduce the intensity of food aversions caused by dysgeusia.
Changes in food preferences and cravings are also common during pregnancy. Some people may crave acidic and salty foods, such as pickles, to counteract the metallic taste. It is important to be mindful of your nutritional intake and consult a healthcare professional if you have concerns about your diet or nutritional deficiencies.
While dysgeusia during pregnancy is typically benign, it is always a good idea to discuss any new or persistent symptoms with your healthcare provider. They can provide guidance and advice tailored to your specific needs and circumstances.
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Medication
Many medications can affect your sense of taste, including over-the-counter allergy medications, prescription drugs like antibiotics, antidepressants, and chemotherapy drugs. Some medications, such as the diabetes drug metformin, are excreted through the salivary glands and wind up in your saliva, so you taste them, and they often taste bitter. Additionally, some medications, such as antidepressants, antihistamines for allergies, or opioids to treat pain, can reduce saliva production, leading to a dry mouth, which might heighten metallic or bitter flavours.
If medication is the cause of your altered taste, there are strategies you can use to cope with the taste. These include staying hydrated, rinsing your mouth with water and baking soda before meals, and avoiding red meat, metal utensils, and complex flavours, preservatives, or artificial flavours, which may intensify the metallic taste.
If the taste is bothering you, talk to your doctor, but do not stop taking your medication without their approval. They may be able to switch you to a different medication that won't cause this side effect.
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Frequently asked questions
There could be a variety of reasons for this, ranging from poor dental hygiene to bacterial infections, dry mouth, or even acid reflux. If the taste is persistent, it is recommended that you consult a doctor or dentist for a diagnosis.
Poor dental hygiene, tooth cavities, and gum disease are some dental issues that could be causing the cheesy taste in your mouth.
Yes, certain medications can alter your sense of taste. This is a known side effect of some drugs used to treat diabetes, hepatitis, and pregnancy.
Yes, in some cases, it could be a sign of a more serious medical condition such as an infection, kidney disease, or even cancer. It is always best to consult a doctor if the taste is persistent.
Maintaining good dental hygiene, staying hydrated, and consulting a doctor or dentist to address any underlying medical conditions are good first steps to getting rid of the cheesy taste in your mouth.

























