Should you worry if your baby's vomit is green?

A crying baby with his mother at the Molai General Hospital in Maiduguri, Nigeria. If your newborn vomits and it does not contain milk, it is more likely to be due to a medical or surgical condition that needs treatment. Photo: Reuters

“My baby is vomiting, doctor, what is wrong with him?”

This query is often posed by anxious mums, dads or grandparents to the doctor, be it in the clinic, hospital ward or nursery, or in the emergency department.