Can strong vaginal flatulence affect my hymen?

Between in / outside: The hymen is the border between a vagina's inside and the outside vulva. Air coming out of the vagina may or may not flutter the hymen depending on the physics of the event... meaning factors such as the quantity of air, the speed of air, the looseness or tightness of the edge of the hymen, etc... That said, have no worries. There is no lasting effect at all.