Odynophagia is pain when swallowing. The pain may be felt in the mouth or throat and can occur with or without difficulty swallowing. The pain may be described as an ache, burning sensation, or occasionally a stabbing pain that radiates to the back. Odynophagia often results in inadvertent weight loss. The term is from - 'pain' and 'to eat'. Odynophagia may have environmental or behavioral causes, such as: Very hot or cold food and drinks (termed cryodynophagia when associated with cold drinks, classically in the setting of cryoglobulinaemia).