Why would a newborn kitten have pus in its eyes?

Pus in a newborn kitten's eyes may indicate an eye infection, which can be caused by bacteria, viruses, or irritants. Newborns, especially those without proper maternal care, are more susceptible to such infections due to their underdeveloped immune systems. It can also result from conjunctivitis or exposure to harmful substances. Prompt veterinary attention is essential to address the underlying cause and prevent potential complications.