If you baby is large or small for his age, he might need a larger/smaller diaper. This is especially true if you have a smaller size baby who is older. Their bladder can hold more, so they need a larger/more absorbent diaper.Jan 3, 2021
Do bigger diapers hold more pee?
Diaper companies know this, so larger sizes are designed to hold more urine. By sizing up your diaper, you're basically increasing your absorbency. For example, a Huggies Size 6 diaper holds 7 to 13 more ounces than their Size 5 diaper.