HEALTH TOPICS 
Achalasia
What Is It?
Achalasia is an uncommon disorder of the esophagus. The disorder makes it difficult for food to pass from the esophagus into the stomach.
The esophagus is a muscular tube. It carries food from the mouth to the stomach.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise