However, they also noted that women who experienced stretch marks as a result of their breast implants did not experience any improvement in their sex lives.
Experts sharply disagreed on the sexual and psychological benefits of breast implants.
Dr. David Reath, chair of the public education committee of the American Society of Plastic Surgeons (ASPS) said that it's very common for a woman post-surgery to say she feels more confident, that her outward body now fits her inward persona.
However, there could be other reasons behind the women's reports of enhanced sex lives, Tomi-Ann Roberts, a distinguished professor of psychology at Colorado College and a member of the American Psychological Association's task force on the sexualization of girls, said.
The study involved 45 women who planned to undergo breast implant surgery.
Researcher Dr. Paulo Guimaraes and colleagues asked the women to fill out a questionnaire before the surgery that assessed their sexual desire, arousal and sexual satisfaction. Patients were then asked to retake the questionnaire at two, four and 18 months after surgery.
The 36 women who did not develop postsurgical stretch marks said they had experienced improved levels of arousal and were more satisfied with their sex lives, researchers said. They reported this improvement at both four and 18 months following surgery.
Nine women with stretch marks following their plastic surgery did not report any improvement. Stretch marks can occur if the implant is significantly larger than the original breast was, according to the ASPS.
The findings are to be presented this week at the ASPS annual meeting in San Diego.