Specifically, incontinence may continue after childbirth because of weakening of the pelvic floor muscles during pregnancy, which causes the bladder to become overactive. Incontinence also occurs because of damage—during pregnancy and childbirth—to the nerves that control the bladder, shifting of the urethra and bladder during pregnancy, and as a result of episiotomy, which is a surgical cut made in the pelvic floor muscle before natural delivery, to allow the baby to come out more easily.
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