疾病进展用英语可以说是 "disease progression"。这个短语的来源是指当一个人患有某种疾病时，这种疾病会在体内发展并逐渐加重。

下面是一些英文例句及其中文翻译：

"The patient's cancer is showing signs of disease progression." (病人的癌症有进展的迹象。)
"We will need to start a new treatment plan to slow down the disease progression." (我们需要开始新的治疗方案来减缓疾病的进展。)
"The disease progression can be different for each person, depending on factors such as age and overall health." (疾病的进展对每个人都不一样，取决于年龄和整体健康等因素。)