Uy mommy, ang kulani sa singit usually ay diaper rash or irritation sa tuyot na area, common talaga especially kapag medyo matagal siyang nasa diaper o kung sensitive ang skin niya sa materials. A few of us moms, we switch to better quality diapers or use diaper cream, pero honestly kung persistent ito or may signs ng infection (like parang may pus or sobrang red at swollen), better to check with the pediatrician na para makasiguro. Pwede ring fungal infection yan kaya importante malaman ng doctor agad!