The decision to have an operation should be up to the individual involved.是否要动手术应该由当事人自己来决定。He needs to have an operation for a stress fracture in his foot.他的足部应力骨折，需要做手术。She had to have an operation for varicose veins.她不得不接受手术治疗静脉曲张。The worst-case scenario was that he would have to have an operation.最坏的情况是他必须得动手术。