What should I do if my baby always wets their pants?

Patient's question:

The baby is almost four years old. Since getting sick in March this year, she has been wetting her pants frequently, but each time it's only a small amount, about the size of her palm. I suspect it might be a bedwetting issue. What should I do? First follow-up question: The child had a cold for half a month this year in March.

Doctor's answer:

What to do if your child wets their pants after the age of 3
1. Treating urinary tract infections
If the doctor examines your child and finds a urinary tract infection, antibiotics should be used immediately to control the infection.
2. Expanding bladder capacity
If your child has a small bladder capacity, bladder function exercises should be performed:
Encourage your child to drink more water during the day and try to extend the interval between two urinations.
Encourage the child to interrupt urination during the process, count from 1 to 10, and then empty the bladder completely to improve the control of the bladder sphincter and gradually increase bladder capacity.