Anak 2 bulan pusat memang biasa bulge keluar sikit, especially masa cry atau strain, that's normal sebab otot perut dia still developing! Tapi kalau bulge tu persistent, besar sangat, atau baby nampak uncomfortable, better check dengan doctor just to be sure ada hernia ke atau apa, sebab some of my mum friends had similar worries and their pediatrician cleared it with a quick check. Usually they just monitor je, no need worry sangat, but peace of mind tu penting, kan?