After fastening the diaper, you should be able to fit two fingers under the waistband. This means the diaper fits correctly—not too snug, not too loose. You shouldn't see any red marks on your baby's skin when you take the diaper off.
While a nappy should fit snugly around waist and legs, you want a loose fit at the front and back. Also make sure the nappy is big enough to cover the lower part of baby's tummy, to just below the belly button. Finally, double check baby's buttocks are completely covered.
Examine a diaper in the current diaper size to see how it fits your baby. If you notice red marks around your baby's upper legs and tummy from the elastic in the diaper, the diaper is likely too small. Additionally, if you notice that the diaper looks or feels too snug on your baby, it is likely too small.
Make sure that the diaper fits snugly around the waist and thighs by running your fingers around the edges and checking that there are no gaps. If you prefer to have a diaper that is loose-fitting, you may experience leakage as urine and poop comes out through the gaps before it can be absorbed.
Nappy size guides
Brands may have different size guides but generally speaking, they work like this: Size 0 (1-2.5kg, 2-5lbs) Size 1 (2 -5kg, 5-11lbs) Size 2 (3-6kg, 7-14lbs)
While the nappy size may appear to fit your baby, the amount of pee may have increased with his growth, so the nappy may not be able to absorb the larger amount of urine. For disposable nappies, the bigger the size, the better the absorbency.
Most babies will start in the Newborn size (which also has a cut-out in the front for the umbilical cord) then ultimately spend the majority of their diapering days in size 4, the most popular size on the market.
As a rough guide, most babies fit into size 2 between the ages of 2 and 6 months, with some progressing into size 3 as early as 3 months old. In terms of how many size 2 nappies you need, you can expect your little one will go through approximately 8 nappies per day.
Some diapers have sizing indicator images in the front of the diaper to show when it's time to size up again. Once that image beneath the fastened ”tabs” starts to show, it might be time to size up. If the two tabs are meeting in the middle of the diaper, the diaper is most likely too big.
Use the size of the diaper
A diaper that's too big might cause rashes to get worse by rubbing and causing friction. Make sure you know your child's diaper size.
Common reasons your baby's nappy might be leaking:
Their nappy is the wrong size. The nappy fit isn't quite right.
Add a Pull-up Nappy
When putting your baby to sleep, make them wear a regular nappy and a pull-up nappy over it. Make sure the pull-up nappy is one size bigger than the regular nappy for more comfort. These pull-up nappies will work as a second layer of protection for your heavy wetter.
Size up. The obvious thing to do is to size up! If your baby's nappy is leaking at night and certainly if it's happening during nap time, it may be time to get a bigger sized nappy to hold in all that extra wee!
The Pampers newborn size offers a fit for infants who weigh less than 10 pounds at birth but don't require premature sizing. Size 1 diapers. These diapers are designed for babies weighing between 8 and 14 pounds.
“Usually, a baby won't fit into a one-size cloth diaper until they are about 2 to 3 months old or about 10 pounds.”
They should fasten easily without having to tug them too much. If the tabs meet or overlap in the middle with no problem, the diaper might be too big. On the other hand, if you have to pull to fasten them and they're tight, the diaper is probably too small.
To help the baby maintain good hygiene, parents should always change diapers every time they get wet. Check the diaper surface on the interior of the diaper periodically to determine whether it is completely dry to the touch. If it starts to feel wet, the diaper should be changed immediately.
Ruffles out.
It's easy to overlook, but the leg cuffs, or ruffles on the edge of the diaper should be pulled out. Make sure to run your finger around these edges to make sure they are pulled out. This helps lock everything in, so there isn't leakage.
Size 1 nappies are designed for newborns and will fit most babies for the first few weeks of their lives, up to around 2 months. If you are wondering how many size 1 nappies you need, we recommend you plan for around 8-10 per day.
If your baby is often dirty after a feed, to avoid the disturbance of having to change their nappy twice, it would be better to change the nappy after the feed. If your baby has reflux, they may vomit if they are moved too much with a full tummy, so you might like to change them before a feed.