http://kidney.niddk.nih.gov/kudiseases/pubs/pregnancy_ez/index.htm
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If you lose bladder control after childbirth, the problem often goes away by itself. Your muscles may just need time to recover. If you still have a problem after 6 weeks, talk to your doctor. Without treatment, lost bladder control can become a long-term problem. Accidental leaking can also signal that something else is wrong in your body.