Idiopathic achalasia
Learn about Idiopathic achalasia, its reported features, relevant specialists, and questions to discuss at a medical consultation.
Also known as: Achalasia cardia; Idiopathic achalasia of esophagus; Primary achalasia
The sources compiled here do not cover: diagnosis, treatment, prevention, prognosis. Ask the treating doctor about these.
What it is
From: Orphanet
Idiopathic achalasia (IA) is a primary esophageal motor disorder characterized by loss of esophageal peristalsis and insufficient lower esophageal sphincter (LES) relaxation in response to deglutition.
Reported clinical features and what the terms mean
The following findings are associated with this condition in Orphanet. They are not a checklist for diagnosing yourself, and they do not all occur in every affected person. Some are examination, imaging or laboratory findings that cannot be recognised at home.
The frequency labels describe how often a finding was reported among people with the condition in the source. They do not give the chance that a person with that symptom has the condition. Definitions below reproduce HPO terminology; they explain the term, not the likely severity in an individual.
- Dysphagia · Very frequent (99-80%)
- Difficulty in swallowing.
- Bronchitis · Frequent (79-30%)
- Inflammation of the large airways in the lung including any part of the bronchi from the primary bronchi to the tertiary bronchi.
- Chest pain · Frequent (79-30%)
- An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the chest.
- Cough · Frequent (79-30%)
- A sudden, audible expulsion of air from the lungs through a partially closed glottis, preceded by inhalation.
- Gastroesophageal reflux · Frequent (79-30%)
- A condition in which the stomach contents leak backwards from the stomach into the esophagus through the lower esophageal sphincter.
- Weight loss · Frequent (79-30%)
- Reduction of total body weight.
- Decreased circulating prealbumin concentration · Occasional (29-5%)
- The concentration of prealbumin in the blood circulation is below the lower limit of normal.
- Malnutrition · Occasional (29-5%)
- A deficiency in the intake of energy and nutrients.
- Recurrent aspiration pneumonia · Occasional (29-5%)
- Increased susceptibility to aspiration pneumonia, defined as pneumonia due to breathing in foreign material, as manifested by a medical history of repeated episodes of aspiration pneumonia.
- Wheezing · Occasional (29-5%)
- A high-pitched whistling sound associated with labored breathing.
When it may begin
From: Orphanet
All ages
Inheritance in the source
From: Orphanet
Autosomal recessive; Not applicable
Frequency and the population described
From: Orphanet
Point prevalence: 1-9 / 100 000; Worldwide; Value and class. Point prevalence: 1-5 / 10 000; Canada; Value and class. Point prevalence: 1-9 / 100 000; Korea, Republic of; Value and class. Point prevalence: 1-5 / 10 000; Ireland; Value and class.
Which doctor should you see?
The suggested department for discussing Idiopathic achalasia is Gastroenterology, with a gastroenterologist as the relevant type of clinician. General physician / Family Medicine; paediatrician for children. Referral depends on symptoms.
Additional services that may be relevant, depending on the findings, include: Clinical Genetics.
This is an editorial referral starting point. The appropriate clinic depends on the person’s age, symptoms, previous diagnosis and local services. The first clinician can decide whether another specialty or a team is needed; a department label does not confirm the diagnosis.
How to prepare for an assessment
Bring a short timeline of the main symptoms: when they first appeared, whether they are constant or episodic, what seems to change them, and how they affect daily activities. Include previous reports, discharge summaries, current medicines and supplements, allergies, and any relevant family history. A dated record is more useful than trying to match every feature in an online article.
Ask the clinician what is already established and what remains uncertain. If a test is suggested, ask what question it answers, what its limitations are and how the result would change the next step. The information here is not an instruction to arrange every possible test. In children, bring growth, developmental and school information if it is relevant to the concern.
- Which digestive symptoms or nutritional changes matter most?
- What question would an endoscopy, scan or laboratory test answer if one is proposed?
- How should persistent pain, bleeding or difficulty eating be followed up?
Treatment discussions and follow-up
The material gathered for this draft does not provide a complete condition-specific treatment pathway for Idiopathic achalasia. That gap does not mean that treatment is unavailable. A clinician needs to establish the diagnosis and review current guidance before recommending medicines, procedures, rehabilitation or other support.
Before leaving the appointment, clarify the next review date, who will communicate results, and whom to contact if the situation changes. Discuss difficulties with sleep, work, school, mobility, eating or emotional wellbeing when these are relevant. Practical support may require coordination between the treating clinician and other services.
The collected references do not establish a complete prevention or long-term outlook section for this entry. Missing information should not be interpreted as proof that prevention is impossible or that a particular outcome is inevitable. Ask what is known for the exact subtype, stage and personal circumstances, and which uncertainties remain.
When to seek emergency help
Severe breathing difficulty, collapse, new stroke-like symptoms, a seizure that is prolonged or repeated without recovery, uncontrolled major bleeding, or an immediate risk of self-harm require emergency help. In India, call 112 or reach the nearest emergency department. This is a general, non-exhaustive warning list; it is not a condition-specific triage tool.
This condition is usually assessed by a gastroenterologist. Every profile shows the doctor’s registration and what has been checked.
All gastroenterology conditions →
Sources
- Orphanet — Idiopathic achalasia — Orphadata Science, CC BY 4.0
- Human Phenotype Ontology Consortium — terminology definitions — HPO licence; definitions reproduced without alteration
- Government of India — Emergency Response Support System — Official reference for India emergency number
Source: MedlinePlus, National Library of Medicine. Orphadata Science: Free access data from Orphanet. © INSERM 1999; July 2026 data, CC BY 4.0. This product uses the Human Phenotype Ontology (hp/releases/2026-09-01). Only sources listed for this article apply. Source material has been selected and arranged; HPO definitions are reproduced without alteration. No source organisation endorses this compilation. Köhler S et al. The Human Phenotype Ontology project: linking molecular biology and disease through phenotype data. Nucleic Acids Research 2014;42(D1):D966–D974. doi:10.1093/nar/gkt1026.
General information, not advice about your situation. Errors can be reported through the corrections process. Reference TDI-C-1227.