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Esophageal Manometry: Testing How Your Esophagus Works

Ken D. Nguyen, MD · Oct 22, 2026 · 1 min read

Esophageal manometry measures how well the muscles of your esophagus squeeze and how the valve at the bottom relaxes when you swallow. We offer high-resolution manometry, which gives a detailed pressure map along the whole esophagus.

Why it's done

How to prepare

  • Don't eat or drink for several hours before the test. Our team will give you exact times.
  • Some medicines that affect the esophagus may need to be paused. Follow your instructions and ask if you're unsure.
  • No sedation is used, so you can usually drive yourself.

During the test

After numbing gel is applied, a thin, flexible tube is passed through your nose into your esophagus. You will swallow small sips of water while sensors record pressure. Most people find it mildly uncomfortable but manageable, and it is over in a short time.

After the test

You can return to normal activities and eating right away. A mild sore nose or throat can happen. Your gastroenterologist will review the results with you. Dr. Tim Chen's clinical interests include esophageal motility disorders.

Make an appointment

Our gastroenterologists in Temple City care for patients from Arcadia, San Gabriel, Pasadena, Monrovia, Monterey Park, and across the San Gabriel Valley. We accept most PPO plans (see accepted insurances), and our doctors speak English, Vietnamese, and Mandarin. Schedule an appointment or call 626-898-4560.

This article is for general education and is not a substitute for medical advice. Talk with your doctor about your own health.

Quick Answers

Does esophageal manometry hurt?

It can be uncomfortable while the thin tube is placed through the nose, but most people tolerate it well. Numbing gel is used, and the test itself takes only a short time.

Why do I need manometry?

To find the cause of trouble swallowing or chest pain when endoscopy is normal, to diagnose achalasia, and before reflux surgery.

Will I be sedated?

No. You need to be awake to swallow during the test, so you can usually drive yourself home.

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