Long-term sexual function after mid-urethral slings for stress urinary incontinence in women

There has been increasing concern about potential negative impact of mid-urethral slings (MUS) on sexual life. Our aim was to study sexual activity 10-20 years after MUS surgery and changes in impact of incontinence on sexual life over time and to compare subjective cure, pain, satisfaction, and incontinence between sexually active and inactive women 10-20 years after MUS.

Historical cohort study using the Norwegian Female Incontinence Registry to identify women who underwent MUS between 2001-2006 and 2011-2012. They answered validated questionnaires about sexual activity, incontinence, pain, and satisfaction with MUS. We assessed changes in urinary incontinence during intercourse and compared symptoms and satisfaction between sexually active and inactive women. The study was registered in Clinical Trials (NCT04912830).

In total, 1210/1903 (64%) responded. Of women responding to questions about sexual activity, 63% (735/1166) were sexually active. 31.3% experienced negative impact of incontinence on sexual life preoperatively, decreasing to 5.9% at 10-20 years follow-up. A higher proportion of sexually inactive vs sexually active women had urinary incontinence (63.5% vs. 47.5%, aOR 1.60 [1.18-2.17]). In a subanalysis, only urgency and mixed urinary incontinence remained significant. A higher proportion of sexually inactive were dissatisfied with MUS (30.1% vs. 12.9%, aOR 2.53 [1.82-3.51]). Persistent pain after MUS was similar for sexually inactive and active women (4.0% vs. 3.2%, aOR 1.10 [0.55-2.19]). Furthermore, 3.4% of sexually inactive had persistent pain after MUS and stated pain as a reason for not being sexually active, whereas 1.7% of sexually active women had persistent pain after MUS and pain during intercourse.

Negative impact of incontinence on sexual life was less prevalent at 10-20 years follow-up after sling surgery compared to preoperative assessment. A higher proportion of sexually inactive had urgency and mixed urinary incontinence and were dissatisfied with MUS. Only 3%-4% of sexually active and inactive women had persistent pain after MUS and this was not associated with sexual activity. This indicates that incontinence has a greater negative impact on sexual activity than persisting pain after MUS at long-term follow-up.