Is a man allowed to defend himself if assaulted by a woman?
Yes, if a women assaults a man and the man did not deserve it, he should be allowed to defend himself. I have found that in todays day and age many women seem to think they can simply hit a guy and nothing happens, but that is not how it works, if a girl slaps me without me deserving it, I hit back, I am not going to punch her in the face for slapping me because that is just wrong, but I would slap her back. Sorry but many women seem to think they are untouchable, but that should not be the case.
If anyone is hit, regardless of their gender, by another individual it is assault. It is expected and often encouraged that if you are being assaulted you take steps necessary to defend yourself. If a women hits a man and is surprised when he hits her back, she is delusional.