Special Riddle #3

Riddle: A doctor and their son went fishing. The doctor claims that the boy is their son. But the boy says that the doctor is not their father. How is this possible?

Answer: The doctor is simply the boy's mother. Source: https://riddles.com/10760

A doctor and their son went fishing. The doctor claims that the boy is their son. But the boy says that the doctor is not their father. How is this possible? — Special Riddle #3 by Divi Riddle