What are the key clinical features that suggest a diagnosis of achalasia in a patient presenting with dysphagia?

Guideline-aligned answer with reasoning, red flags and references. Clinically reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP.

Posted: 16 August 2025Updated: 16 August 2025 Guideline-Aligned (High Confidence) Clinically Reviewed
Dr Kola Tytler MBBS CertHE MBA MRCGPClinical Lead • iatroX

The key clinical features that suggest a diagnosis of achalasia in a patient presenting with dysphagia are primarily derived from the nature of the dysphagia itself and associated symptoms . Achalasia is a primary esophageal motility disorder characterized by impaired relaxation of the lower esophageal sphincter (LES) and absent esophageal peristalsis . Patients typically experience progressive dysphagia to both solids and liquids . This dysphagia is often long-standing, evolving over months to years . Other common symptoms include regurgitation of undigested food, which can lead to nocturnal cough or aspiration . Patients may also report chest pain and significant weight loss due to difficulty eating . While heartburn or pyrosis can occur, it is often due to food stasis rather than acid reflux .

Educational content only. Always verify information and use clinical judgement.

What are the key clinical features that suggest a diagnosis of achalas