The information about Renee breast implants is in the public domain. The plastic surgery procedure, which according to some experts, she seems to have had in 2010 boosted the size of her breasts from 34 B to AD cup. You can see this clearly from Renee plastic surgery before and after photos. Although she has not come out publicly about the implants, it is clear that she looks a lot more different from the way she looked before the procedure. She now looks like a typical woman in her 40s while walking on the streets.
Generally, whether Renee Zellweger plastic surgery procedures are rumors or a reality, they seem to have given her a completely unique look.