Achalasia — Explained by Medical Evidence, Not Myths

Achalasia is a rare swallowing disorder in which the esophagus has trouble moving food downward and the lower esophageal sphincter does not relax properly. This can cause food and liquids to stick, leading to difficulty swallowing, regurgitation, chest discomfort, and weight loss if left untreated.

What achalasia is

Achalasia is a disorder of esophageal motility, meaning it affects how the swallowing tube moves food and liquid toward the stomach. In achalasia, the lower esophageal sphincter, the valve between the esophagus and stomach, does not relax normally during swallowing. At the same time, the coordinated muscle contractions that usually push food downward become weak or absent.

This combination makes swallowing difficult because food and drink can collect in the esophagus rather than passing smoothly into the stomach. People may feel that food is sticking, may bring undigested food back up, or may avoid eating because meals become uncomfortable or slow.

Achalasia is not the same as common acid reflux, although some symptoms can overlap. It is also different from a mechanical blockage such as a tumor or a narrowing caused by scar tissue. Because its symptoms can develop gradually and be mistaken for other digestive conditions, diagnosis sometimes takes time.

How achalasia feels: common symptoms

The hallmark symptom of achalasia is dysphagia, or difficulty swallowing. This often affects both solids and liquids, which can help distinguish achalasia from some other causes of swallowing trouble. Symptoms may begin mildly and become more noticeable over months or years.

Many people also experience regurgitation, where undigested food or saliva comes back into the mouth, especially when lying down or after meals. Some report chest discomfort, a feeling of pressure behind the breastbone, coughing at night, bad breath, or the sensation that food stays in the chest.

Over time, reduced food intake or fear of eating may lead to unintended weight loss. In some cases, retained food can be inhaled into the lungs, increasing the risk of choking, repeated chest infections, or aspiration pneumonia.

• Difficulty swallowing solids and liquids
• Food sticking in the chest
• Regurgitation of undigested food or saliva
• Chest discomfort or pressure
• Coughing, especially at night
• Unintended weight loss

Why achalasia happens and who may be affected

Achalasia is thought to result from damage to the nerve cells that control the esophageal muscles and the lower esophageal sphincter. When these nerves do not work properly, the valve stays too tight and the normal wave-like muscle activity of the esophagus is impaired. The exact reason this nerve damage develops is often unclear.

In many people, achalasia appears without a definite cause. Researchers have explored possible links to autoimmune processes, infections, and genetic susceptibility, but for most patients there is no single identifiable trigger. Achalasia can occur at different ages, though it is more often diagnosed in adults.

Doctors also consider conditions that can mimic achalasia, sometimes called pseudoachalasia. These include cancers near the junction of the esophagus and stomach or other disorders that affect the muscles or nerves of swallowing. This is one reason a careful medical evaluation is important before treatment is planned.

How achalasia is diagnosed

Diagnosis starts with a medical history and a review of swallowing symptoms, weight changes, reflux-like complaints, and any episodes of coughing or choking. A clinician will usually ask whether the swallowing problem affects solids, liquids, or both, and whether symptoms are getting worse over time.

Several tests may be used together. Upper endoscopy allows the doctor to look inside the esophagus and stomach and to exclude structural problems such as inflammation, narrowing, or tumors. A barium swallow, sometimes called an esophagram, shows how liquid moves through the esophagus and may reveal delayed emptying and a narrowed lower end.

The most important confirmatory test is esophageal manometry. This measures pressure and muscle coordination inside the esophagus during swallowing and helps classify achalasia into subtypes. These subtypes can guide treatment decisions and help predict how well a person may respond. If related conditions are suspected, the care team may also evaluate for gastroesophageal reflux disease or other upper digestive problems.

Treatment options for achalasia

Treatment aims to reduce pressure at the lower esophageal sphincter so food and liquids can pass more easily into the stomach. While current treatments do not restore normal nerve function, they can significantly improve symptoms, nutrition, and quality of life. The best approach depends on age, symptom severity, manometry findings, overall health, and local expertise.

Common options include pneumatic dilation, in which a balloon is used to stretch the tight lower sphincter, and surgical or endoscopic myotomy, which cuts the tight muscle fibers. These procedures are often discussed alongside gastroenterology care and may be selected after specialized testing. Peroral endoscopic myotomy and laparoscopic Heller myotomy are established options in many centers, each with potential benefits and risks that should be reviewed individually.

Botulinum toxin injection into the sphincter may be considered for selected patients, particularly those who are not good candidates for more durable procedures. Medicines that relax the sphincter are sometimes used, but they usually provide limited relief and are not a long-term solution for most people. Some treatments can increase the chance of reflux afterward, so follow-up care is important. In broader digestive evaluation, doctors may also consider whether symptoms overlap with conditions such as hiatal hernia.

Because care can involve advanced endoscopy, surgery, imaging, and nutrition support, a multidisciplinary approach is often helpful. Near the end of the care pathway, patients seeking coordinated evaluation may benefit from centers offering endoscopic assessment and, when appropriate, surgical treatment as part of an individualized plan.

Living with achalasia: self-care and long-term follow-up

Daily habits can help reduce discomfort, although self-care does not replace medical treatment. Eating slowly, chewing thoroughly, taking small bites, and sipping water with meals may make swallowing easier. Some people feel more comfortable with softer foods or smaller, more frequent meals.

It can also help to remain upright during and after eating, especially in the evening, to lower the chance of regurgitation. Sleeping with the head elevated may reduce nighttime symptoms for some individuals. If weight loss or poor intake becomes a concern, a doctor or dietitian can help with a safer nutrition plan.

Long-term follow-up matters because symptoms can recur after treatment, and some people develop reflux or persistent swallowing difficulty that needs reassessment. Follow-up may include symptom review, repeat testing in selected cases, and monitoring for complications such as malnutrition or aspiration. Acibadem International’s multidisciplinary specialists in JCI-accredited hospitals also diagnose and treat achalasia for international patients when coordinated specialist care is needed.

When to seek medical care

Persistent difficulty swallowing is not something to ignore. A person should arrange medical assessment if food or liquids repeatedly feel stuck, if regurgitation happens often, or if meals are taking longer because swallowing has become difficult.

Prompt medical attention is especially important when swallowing problems are getting worse, are associated with unintended weight loss, chest pain, repeated vomiting, or coughing and choking during meals. Urgent care is needed if someone cannot swallow at all, has signs of dehydration, or develops breathing difficulty after choking or regurgitation.

Because achalasia can resemble other conditions, including structural blockage and reflux-related disorders, a proper evaluation is the safest way to reach the correct diagnosis and choose effective treatment.

Frequently asked questions

Is achalasia the same as acid reflux?

No. Achalasia is a swallowing disorder caused by poor esophageal movement and failure of the lower esophageal sphincter to relax properly. Acid reflux involves stomach contents flowing back into the esophagus, although some symptoms can overlap.

What is the first sign of achalasia?

The first sign is often difficulty swallowing, especially a feeling that food or drink is getting stuck in the chest. Some people notice regurgitation or chest discomfort early as well.

Can achalasia go away on its own?

Achalasia does not usually resolve on its own. Symptoms may fluctuate, but the underlying problem with nerve and muscle function typically persists and often needs medical treatment.

Is achalasia dangerous?

Achalasia is usually manageable, but it should be taken seriously because it can lead to poor nutrition, weight loss, and aspiration of food into the lungs. Early diagnosis and treatment can help reduce these risks.

How do doctors confirm achalasia?

Doctors usually combine upper endoscopy, a barium swallow, and esophageal manometry. Manometry is the key test because it measures muscle coordination and sphincter relaxation during swallowing.

What is the best treatment for achalasia?

There is no single best treatment for everyone. Options such as pneumatic dilation, surgical myotomy, or endoscopic myotomy are chosen based on symptoms, achalasia subtype, overall health, and specialist assessment.

References

• National Institute of Diabetes and Digestive and Kidney Diseases
• American College of Gastroenterology
• National Organization for Rare Disorders
• Mayo Clinic
• European Society of Gastrointestinal Endoscopy

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.