Mommy, any unusual bump or swelling sa likod ng tenga ng bata ay dapat i-check ng doctor, lalo na if it's new or getting bigger, mas safe lang talaga na makita ng professional. A few of us moms have had similar worries, at parang laging peace of mind lang when the pedia says it's nothing to worry about, you know? Bring your little one in so they can examine it properly at ma-rule out any concerns.