PROBLEM TO BE SOLVED: To provide a medical suction device that uniformly illuminates the periphery of a suction tube. SOLUTION: A medical suction device 1 has a hollow main body portion 11, a suction tube 12 inserted into the main body portion 11 and sucking a suction material L of a liquid stored in a surgical field, and a tip of the main body portion 11. A tubular light guide member 13 through which the suction tube 12 exposed from the above passes through the inside, and a light emitting unit 14 installed in the main body 11 and irradiating the light guide member 13 with light. The light guide member 13 preferably has an uneven portion at the tip of the peripheral surface. [Selection diagram] Fig. 2【課題】吸引管の周囲を均一に照らす医療用吸引器を提供する。【解決手段】医療用吸引器1は、中空の本体部11と、本体部11内に挿通され、術野に貯留した液体の吸引物Lが吸引される吸引管12と、本体部11の先端から露出した吸引管12が内部を通る管状の導光部材13と、本体部11内に設置され、導光部材13に光を照射する発光部14と、を備える。導光部材13は、望ましくは、周面の先端部に凹凸部を有する。【選択図】図2