What is the reason for a three-year-old baby to have a long and thin worm in their stool?

Patient's question:

Sure, I can help with that. However, you haven't provided any content to translate. Please provide the text you want to be translated into English.

Doctor's answer:

Hello, your baby may have intestinal parasites. Intestinal parasites are quite common and can easily cause anemia in children. You can use deworming medications like Anthelminth to treat them.