How fertile is a man after fifty years old?

Answer 1

Male fertility begins to drop slightly at age 25 and continues from there. There is no standard measurement of "how fertile" anyone is. __________________________ However, unlike women who become completely infertile after menopause, men are generally fertile throughout their lives. Old men are quite capable of siring a child at age 80 and up.

Answer 2

Perhaps not all of them but there are records of seventy year old fathers.