It is possible that your swallowing problem might come from a neurologic (brain or nerve) problem, from a change in the way your esophagus muscle tightens and relaxes, or from a muscle disease. In addition, several medications (particularly medicines to treat psychiatric symptoms) can cause swallowing difficulty as a side effect because they may interfere with your mouth and throat muscle coordination.
Tests that might be recommended by your doctor include laryngoscopy (viewing of the larynx through your nose or mouth with a camera on a flexible, narrow rod), video swallowing study (this study uses an x-ray technique called fluoroscopy to videotape your swallowing while you consume samples of foods or drink containing a material that can show up on x-ray), esophagogastroduodenoscopy, or EGD (viewing of the esophagus, stomach, and duodenum with a camera on a flexible, narrow cord), barium swallow (x-ray views of the esophagus after you swallow a liquid that shows up on x-ray), magnetic resonance imaging (MRI) scan of the brain, or antibody test (blood test) for the condition myasthenia gravis.
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