As indicated above, they try to keep violence against women to a minimum. Look at all the fights Kira's been in. She's able to whup most of the male opponents, but against another woman, she actually lost (Invasive Procedures)
. It was only when she gets outnumbered, that she gets KO'd from behind. Other than that, about the only 1-on-1 combat she was outmatched was against the Jem'Hadar in The Search
, and even then he used his phaser instead of giving her a major pounding. That probably wouldn't have been approved by the advocate groups.