hlo doctor my baby boy is 61 days old..his omblicalcurd is look like some times big and somtimes small ....is it normal???

A. you need to get a proper examination done by your pediatrician as increase in the size maybe related to umbilical hernia. You should have proper consultation with your treating doctor , as some examination or investigations may be needful, so that proper medications can be given And the treatment can be done very properly.