Hi Good morning,
U need to tell few more details like is he passing large volume or small volume of urine?
Does he cry during passing urine?
Is it constant dribbling?
Is he suffering from any constipation?
How much milk and water and solid intake is there?
How is his growth?
Any other associated illnesses Birth history?
Only after analysing all these questions .after history and examination only one can reach to a proper conclusion about the problem?
I suggest you get him checked by a local pediatrician. Who can help if the problem is persistent or if u notice anything else from the above history.
Frequent passing of urine in a 1year old child is normal . If he has discomfort or crying while passing urine or has high color of urine ,he needs to be seen by a doctor who can examine and ask for urine sample investigation. Which will help in use the problem.