A systematic review and meta-analysis in The Journal of Sexual Function Medicine found that women who had breast reduction surgery often reported better Function afterward, pooling 13 studies with 676 participants published through April 15, 2025. Earlier research had produced conflicting results, and the review shows an association, not cause, because it rests mostly on small, short observational studies, PsyPost reports.
Breasts come with a lot of cultural baggage about femininity and Function identity. For women with very large ones, there is also the plain physical stuff: aching backs and shoulders, irritated skin and trouble working out. Many patients go into the operation hoping it will improve their sex lives too. Earlier research on whether it does has been all over the place, which is what this review set out to sort out.
Researchers in Iran searched medical databases for studies published up to April 15, 2025, according to the journal abstract. Nine of the 13 studies found a significant improvement in Function after surgery. Four found no significant change.
Eight of the studies used standardized questionnaires, which allowed a pooled analysis. Across those, breast reduction was associated with a 13.27% increase in the mean Function score, according to the abstract. Many of the studies used the Female Function Index, which measures desire, arousal, lubrication, orgasm, satisfaction and pain, PsyPost reports. One included study found the share of women with clinical Function dysfunction fell from 62.5% before surgery to 21.4% afterward.
The researchers point to a few possible explanations, according to PsyPost. Less pain and physical restriction means less discomfort to distract from arousal. And there is the mental side. Women with large breasts often practice "spectatoring," PsyPost reports: attention drifts from sensation toward constant self-monitoring of how their bodies look. Less appearance-related anxiety may leave more room for pleasure.
Now the fine print. Most of the included studies were observational, so they can show a link but not prove the surgery caused the improvement. Many had fewer than 50 participants and followed patients for just three to six months, per PsyPost. The studies also varied in design and surgical technique, and the data did not allow the researchers to test whether the amount of tissue removed or the specific method mattered. The research focused almost entirely on cisgender, heterosexual women.
The review's authors conclude that female Function improves following reduction mammoplasty, but that, given those limitations, "further rigorous research is needed to confirm these results."