A diaper which is small will be prone to leaking because there isn’t enough absorbent material for the volume of Urine. If baby is reaching the upperend of the weight range for the diaper size she is currently wearing, it is probably time to move to the next size. Other signs that your baby’s diaper is too small:
· Diaper can’t covering baby’s ass completely
· Red marks around the waist or thighs and signs of chafing, which may indicate the diaper is too tight
· Diaper is soaking through
Bigger diapers are capable of handling more waste because they have more absorbent material. However, diapers may also leak because they are too big. Make sure that the diaper fits 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 is absorbed.