Breast implants are a common procedure in recent years. I encourage you to discuss the risks, benefits and specific procedure with your plastic surgeon
. In general, for any medical intervention (especially an elective intervention) it is important to have a thorough knowledge of all aspects of the procedure so you can have informed consent.
To answer your question--yes, there are reports of implants being affected by cold weather. This is more likely with saline implants, but also occurs with silicone. People report breast pain, and occasionally a change in feel during the cold months. There is no good data to say how often this occurs--however it is certainly not universal. This appears to lessen with time, however can last years. The likelihood depends on the procedure--where exactly the implant
is placed. Talk with your plastic surgeon for more information.
Temperature is not thought to make the breast implant leak--however there is a chance of leak based on natural wear and tear. In general--saline has a higher leak rate than silicone. Silicone is likely 1-2 % rupture rate at 10 years, while saline is likely 7-16% at ten years. Data varies wildly, depending on the surgeon and procedure--so again talk to your surgeon. In addition. there are other complications to consider: infection, capsule contracture, incomplete muscle release and synmastia (the appearance of "uni-breast").
Talk to your doctor
. There is a real chance of problems, however there are benefits that these should be weighed against. Good luck in your decision.