Ay, mama, hindi ko masyadong ma-advise nang mabuti dito kasi kailangan talaga tingnan ng doctor ang ganyan, may iba't ibang reasons why may bukol, at importante na ma-check physically para sure! Kunwari sa amin, one of my friends' baby had a small lump din at natuwa lang sila na walang problema, pero kailangan pa rin ng professional to rule out anything else. Magpa-check ka na lang sa pedia, okay? They'll feel it and tell you kung normal lang or if it needs monitoring.