PROBLEM TO BE SOLVED: To provide a swallowing diagnostic tool capable of reducing invasiveness to a subject in the diagnosis of swallowing difficulty.SOLUTION: A swallowing diagnostic tool 10 includes a determination part 11 consisting of a solid material, and a string-like part 12, one end of which is connected to the determination part 11. A core member 11a of the determination part 11 is formed of a radiopaque material, and a silicon resin layer 11b, which is a soft material, is provided to the periphery of the core member 11a so that the surface of the determination part 11 is coated with the silicon resin layer 11b.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】嚥下困難性の診断において、被験者に対する侵襲性を低下させることの可能な嚥下診断具を提供する。【解決手段】本実施形態に係る嚥下診断具10は、固体物質からなる判定部11と、一端部が判定部11に連結された紐状部12と、を備え、判定部11の核部材11aがX線不透過性物質で形成されるとともに、核部材11aの周囲に軟性素材であるシリコン樹脂層11bを設けることにより、判定部11の表面がシリコン樹脂層11bで被覆されている。【選択図】図2