An illness or medical condition that a person had in the past (preexisting condition); used in medical and insurance contexts to refer to medical history.
手術前に既往症があるかどうかを医師に伝えてください。
Please tell the doctor if you have any preexisting conditions before the surgery.
患者は糖尿病の既往症があり、現在も治療を受けている。
The patient has a history of diabetes and is still receiving treatment.
保険申請書に既往症の有無を記入してください。
Please indicate whether you have any preexisting conditions on the insurance application.