What Causes a Bitter Taste in Your Mouth?

A bitter taste in your mouth typically results from poor oral hygiene, medications, or underlying health conditions. Common culprits include antibiotics, antihistamines, and blood pressure medications, which affect over 60% of adults taking prescription drugs. Dental issues like gum disease, tooth infections, or dry mouth can also create persistent metallic or bitter sensations. Medical conditions such as acid reflux, sinus infections, liver problems, or hormonal changes during pregnancy frequently alter taste perception. Smoking, certain foods, and vitamin deficiencies may contribute as well. If the bitter taste persists for more than a few days or occurs with other symptoms, consult your healthcare provider to identify the underlying cause.