Endoscopy can be used to assess various aspects of swallowing function, but it doesn't directly measure how well a person can swallow in the same way that a swallowing study (like a barium swallow test or a video fluoroscopic swallow study) does.
In endoscopy, a flexible tube with a camera (an endoscope) is inserted through the mouth and into the esophagus and sometimes the stomach. This procedure allows the doctor to visually examine the lining of the esophagus and identify any abnormalities, such as strictures, tumors, or inflammation, that could affect swallowing.
If you're experiencing difficulties with swallowing (dysphagia), your healthcare provider may recommend an endoscopy alongside other tests to get a comprehensive understanding of your swallowing function and to rule out any structural problems. If you're concerned about your swallowing ability, it's important to consult with a healthcare professional who can recommend the appropriate evaluations.