It is not good
Ypur neonatologist or pediatrician can answer this better than me.
It is not good as the meconium is very irritative to lungs, can cause breathing , other problems. Also some times it can be associated with descreased oxygen
to the baby in labor
or in utero which can cause problems, strees on the baby can cause meconium. Also more common if you go overdue. I do not allow my pts to go overdue.