My son 8 years old , his problem is he wetting him self night time , and that is happens every day , what is the reason and what shall i do ?

Bed wetting: take him to his primary care for evaluation . Some of the causes can give night time bed wetting children' s bladder capacity is small and they need to empty the bladder fully. Night time bed wetting occurs during non REM sleep or deep sleep the child is unaware of it. Make sure he does not have a urine infection. Restrict water intake after 7 PM and make sure he empties the bladder before sleep