Martial arts may be categorized along a variety of criteria, including:
Traditional or historical arts and contemporary styles of folk wrestling vs. modern hybrid martial arts.
Regional origin, especially Eastern Martial Arts vs. Western Martial Arts
Techniques taught: Armed vs. unarmed, and within these groups by type of weapon (swordsmanship, stick fighting etc.) and by type of combat (grappling vs. striking; stand-up fighting vs. ground fighting)
By application or intent: self-defense, combat sport, choreography or demonstration of forms, physical fitness, meditation, etc.
Within Chinese tradition: "external" vs. "internal" styles