An unpleasant sour taste in the mouth can appear suddenly and cause discomfort. In many cases, this is only a temporary phenomenon, but sometimes such a symptom can indicate hidden health problems, writes WomanEL. Let's figure out why a sour taste appears and how to deal with it.
ContentThe main causes of a sour tasteReflux disease (GERD)Dental and gum diseaseEffect of medicationsImbalance of intestinal microfloraMetabolic disordersBad habitsWhat to do if you notice a sour taste? 
Main causes of a sour taste
Reflux disease (GERD)
Gastroesophageal reflux disease occurs when stomach acid flows back up into the esophagus. This causes heartburn, a sour taste, and even chest pain. It can be caused by an unhealthy diet, coffee, alcohol, or fatty foods.
Teeth and Gum Disease
Tooth decay, periodontitis, or other dental problems can cause an unpleasant taste. Bacteria in the mouth can cause chemical reactions that promote the production of acid.
Effects of medications
Some medications, such as antibiotics or high-acid medications, can cause a temporary change in taste.
Intestinal microflora imbalance
Problems with the gastrointestinal tract, in particular dysbiosis, can affect taste receptors. A change in microflora contributes to increased acidity in the stomach.
Metabolic disorders
Diabetes or gallbladder problems can also cause a sour taste. Also, during pregnancy or hormonal changes (for example, due to menopause), changes in taste sensations may occur, including a sour taste.
Bad habits
Smoking and drinking alcohol can also cause a sour taste. They reduce saliva production and promote bacterial infection in the mouth, which ultimately causes a bad taste.
What to do if you notice a sour taste?
Analyze your diet. Avoid fatty, spicy, and acidic foods, especially before bed.
Pay attention to oral hygiene. Regular brushing and visits to the dentist will help avoid problems.
Drink plenty of water. Dehydration can increase the feeling of acid in your mouth.
Consult your doctor. If the sour taste does not go away within a few days, consult a gastroenterologist or dentist to determine the exact cause.
A sour taste in your mouth is not always a serious problem, but it should not be ignored. Close attention to your diet, oral health, and consulting a doctor will help you avoid complications and feel the usual taste of life again.
Previously, we talked about a metallic taste in your mouth: possible causes and whether you need to see a doctor.