Dysphagia is defined as difficulty in swallowing. It is usually associated either with pharyngeal or oesophageal disease.1 There is a spectrum of possible aetiologies (see links in table under Aetiology, below), from self-limiting illness (for example, tonsillitis) to carcinoma. It may occur with odynophagia - painful swallowing.
This is a companion discussion topic for the original article at https://patient.info/doctor/history-examination/dysphagia