What can cause bed wetting in normal adults?

Primary or secondary: Primary bed wetting can persist from infancy in occasionally & rarely in otherwise normal adults, causes include lack of anti-diuretic hormone secretion at night causing greater urine production at night, small functional bladder capacity or failure of central (brain) bladder control. 2ndary wetting can occur with infection, diabetes, ms, spinal cord or brain injury or tumor &?. See neuro-gu dr.