The bigger question here should be what fight are you asking about?, if you are doing aranged competition fights, it will require rules, if your looking for real life arranged matches on a weekend or similiar it will be very rare you get another to agre to scratchbite and rip int oeachother as if it was a street fight.
If you run into some chick or woman on the street, bar what have you, then naturaly its anything goes to win, I been doing real life arranged for years now and the first step I have always taken and others have after makingcontact and agreeing ona venue is a sit down to agree to rules, I never met another woman in all my years who had to go to work on monday, or PTA, or just be a mom again, say "lets fight no rules and really go at it", then expect to face family, neighbors and employers with claw marks, and teeth marks ,black eyes, so on, do arranged rule fights get heated maybe at times come to blows absolutely, just like naything in life personalities clash, people have natural dislike for other, or maybe one breaks a rule during a match and tempers do more than flare up, but thats why I have my husband with me at every fight, I couldn't imagine going to work on Monday or to my kids and say Mommies ok I just was fighting, or face my boss ," no its ok Sir I wanted this no charges are being pressed", cmon just doesn't go down that way on a regular basis, as far as the rules used? thats totally open conversation between the 2 women meeting , those can range from no hitting,no kicking,no kneeing, scratching so on to a match with less rules, same goes for each style of fight, be it hair fight, breastfight, catfight, catty wrestling so on