i don't know the age of your son or if he is having bedwetting issues but frequent night-time urination could be due to many things. for instance if he has a tendency to over-drink liquids in the evening he would more likely need to urinate throughout the night. sometimes little a boy will get irritation of their penis from soaps (not rinsed well after a bath or shower) laundry detergent or dryer softener residuals left in their clothing etc. this can cause an irritant urethritis that makes him feel like he needs to urinate. less common but not out of the question would be a child who is developing diabetes (type 1). it would be wise to discuss this with his medical provider and have some lab tests. another possibility could be a deficiency of a natural hormone called adh (anti-diuretic hormone). the hormone is supposed to keep us from urinating often at night so if there is a deficiency the body will continue to process urine like we were awake during the day. this is one cause of nocturnal enuresis otherwise known as bedwetting. he could potentially be a bed-wetter but instead is just waking up multiple times to urinate; perhaps not sleeping well for fear that he will wet his pants or the bed. if he does have an adh deficiency this can be corrected by a medication called desmopressin (ddavp). his medical provider will be able to determine if this would be helpful. get him in to see his medical provider.
my son is urinating frequently but only at night. no pain with it. what could cause this?