Thanks for the query
Sticky urine may be normal in infancy, but if it persists for a long duration then its a problem.
Is your child cries during passing urine or is there is decrease in frequency of urination. If any of this is there then consult your pediatrician
for proper evaluation. Urine may be sticky in increase sugar concentration in urine or any kind of urinary infection. So monitor your child, give adequate feeds and if needed consult your doctor.
I hope this answers your query
Wish you and your family good health