What causes a bitter taste in the mouth?
Disease description:
Since this morning after waking up, I have been experiencing a persistent bitter taste in my mouth, accompanied by a sour taste. I would like to know what might be causing this condition.
Doctor's answer (1)
Dr. Shen Yonghua
Bitter taste in the mouth, commonly referred to as oral bitterness, is a frequent clinical symptom. The following are some common causes:
1. Dietary factors: Consuming excessive bitter-tasting foods, such as bitter melon and bitter lettuce, may leave a lingering bitter taste in the mouth. Additionally, long-term alcohol consumption, smoking, or eating spicy and irritating foods may affect taste sensation and lead to oral bitterness.
2. Oral diseases: Inflammation or infections in the mouth, such as gingivitis, periodontal disease, and dental caries, may also cause a bitter taste. Moreover, dry mouth is another common cause of oral bitterness.
3. Gastrointestinal diseases: Conditions such as gastritis, gastric ulcers, and reflux esophagitis may lead to indigestion, causing food to remain in the stomach for prolonged periods and resulting in the production of bitter substances that reflux into the mouth, causing bitterness.
4. Medication side effects: Some medications may cause oral bitterness during their use, including certain antibiotics, antihypertensive drugs, and antidepressants.
If the symptom of oral bitterness persists, timely medical consultation is recommended. Additionally, maintaining good oral hygiene and avoiding unhealthy habits such as smoking and alcohol consumption can help alleviate oral bitterness.
