A baby's bladder fills to a set point, then automatically
contracts and empties. As the child gets older, the
nervous system develops. The child's brain begins
to get messages from the filling bladder and begins
to send messages to the bladder to automatically emptying
until the child learns the time and place to void.
Young people who experience night-time wetting tend
to be physically and emotionally normal. Most cases
probably result from a mix of factors.
Recurrent urinary tract infection
and constipation are the commonest cause. Many children
suffer from burning micturation, which contribute
an important factor for bed-wetting.
Slower Physical Development
In children bed-wetting may
be the result of a small bladder capacity, long sleeping
periods and under-development of the body's alarms
that signal a full or empty bladder.
Excessive Output of urine during sleep
Normally, the body produces
a hormone that can slow the making of urine. This
hormone is called Antidiuretic hormone.The body normally
produces more ADH at night so that the need to urinate
is lower. If the body doesn't produce enough ADH at
night, the making of urine may not be slowed down,
leading to bladder filling. If a child does not sense
the bladder filling and awaken to urinate, then wetting
Certain inherited genes appear
to contribute to incontinence. If both parents were
bed-wetters, a child may have chance of being a bed-wetter
also. Studies suggest that other undetermined genes
also may be involved in incontinence.
A small number of cases of
incontinence are caused by physical problems in the
urinary system in children. In these cases, the incontinence
can appear as a constant dribbling of urine.
A child may not want to use the toilet at school or
may not want to be interrupted at enjoyable activities,
so he or she ignores the body's signal of a full bladder.
These children often develop urinary tract infections,
leading to an irritable or overactive bladder.
Bladder training consists of exercises for strengthening
and coordinating muscles of the bladder and urethra
and may help controlling urination. These techniques
teach the child to anticipate the need to urinate
and prevent urination when away from a toilet. Drink
less fluid before going to sleep. Avoid coffee.