你的第一个问题可以大致回答一下

我觉得你要多阅读一些有关的专业信息哦，这可不是一个小手术。

我从前的工作恰好和乳房外科手术有一点相关(不是医生,是做科研的)，所以你的第一个问题可以大致回答一下：

All breast implants will eventually break. Studies show that silicone implants usually last between 7-12 years, however, it is impossible to predict for an individual case. Unfortunately some break during the first few months or years. In a study conducted by the Food and Drug Administration (FDA) most women had experience of a broken implant within 11 years. In 21 percent of these instances, the silicone had migrated outside of the gel capsule and leaked into the lymph nodes and other organs. You are recommended to have scans every 2 years to detect leakages (not covered by insurance). Many women will need to have their implants replaced every 10 years at their own expense.

另外一个要考虑的是隆胸会影响乳腺癌的诊断，具体有多少影响我没有数字，但是和医生的经验有很大关系。

关于找医生，最少得有整型外科证书，有整型外科正规训练，主刀作过几百例以上。另外要让你感觉到他给的信息比较中肯，交流起来比较舒服。

你自己的身体只有你自己能作主，希望你能多花一点时间搜集信息和考虑，作一个理性的决定。