是的，请看：

If a colonoscopy doesn't find adenomas or cancer and you don't have risk factors, the next test should be in ten years. If one or two small, low-risk adenomas are removed, the exam should be repeated in five to ten years. （from http://www.aafp.org/afp/2015/0115/p93.html)

所有跟帖： 

• 你属于后者，需要五年做一次 -dudaan- ♂ (0 bytes) () 12/12/2017 postreply 04:51:36

• 谢谢讨论。我不是， -work&family- ♀ (47 bytes) () 12/12/2017 postreply 05:05:31

• 我上次只有一个hyperplastic 息肉，医生仍然让我五年做 -dudaan- ♂ (44 bytes) () 12/12/2017 postreply 06:10:07

• over就是这么出台的 -Gbdjw- ♀ (0 bytes) () 12/12/2017 postreply 07:14:36

• 那是有原因的， -work&family- ♀ (334 bytes) () 12/12/2017 postreply 08:04:03