Judo is one of the martial arts sports. In martial arts hurting an opponent is something that is forbidden what's more if it gets fatal. That actually became a ban in judo regulations.

Judo martial arts has several rules. Among others; 1. Regulations for completeness and place 2. Rules of the game or match 3. Rules of etiquette and 4. Prohibitions in judo matches.

Each rule can be explained as follows: