What is the difference between women and men's golf balls?

Yes and no, the

women’s high school ball is a size 3 and collegiate is a size 4.

Where it gets tricky is international play. The “size” is the same

(5) however the ball is 25% lighter do to helium. This is not in

all leagues but there are newspaper articles about a league

thathave hadan explosion in the room where the kept the helium

filled balls. This was said to be done for the safety of the

player, due to the low density of the women’s feet.